WO2021014892A1

WO2021014892A1 - Heat exchanger

Info

Publication number: WO2021014892A1
Application number: PCT/JP2020/025345
Authority: WO
Inventors: 剛史細野; 小原　公和
Original assignee: 株式会社デンソー
Priority date: 2019-07-23
Filing date: 2020-06-26
Publication date: 2021-01-28
Also published as: US20220136785A1; CN114127490B; DE112020003525T5; CN114127490A

Abstract

A heat exchanger is provided with a side plate part (32) in which a prescribed lamination direction (Ds) is defined as the thickness direction, a heat dissipation part (20), and an evaporation part (22). The heat dissipation part comprises a plurality of heat dissipation component sections (201) that are laminated on one side in the lamination direction with respect to the side plate part, that are joined to each other, and that have heat dissipation flow passages (201c) formed therein. The evaporation part comprises a plurality of evaporation component sections (221) that are laminated on one side in the lamination direction with respect to the side plate part, that are joined to each other, and that have evaporation flow passages (221c) formed therein. The evaporation flow passages (221c) are arranged alongside the heat dissipation part in the direction along the side plate part. An outlet position heat dissipation component section (202), which is at an end of the plurality of heat dissipation component sections, is provided with a heat dissipation part outlet (202a), and an inlet position evaporation component section (222), which is at an end of the plurality of evaporation component sections, is provided with an evaporation part inlet (222a). In addition, all of the heat dissipation flow passages formed in the plurality of heat dissipation component sections are connected to the evaporation flow passages, with the heat dissipation part outlet and the evaporation part inlet therebetween.

Description

Heat exchanger

Cross-reference to related applications

This application is based on Japanese Patent Application No. 2019-135405 filed on July 23, 2019 and Japanese Patent Application No. 2019-229631 filed on December 19, 2019. The description is incorporated by reference.

This disclosure relates to a heat exchanger through which a refrigerant flows.

As a heat exchanger of this type, for example, the flow path unit described in Patent Document 1 has been conventionally known. This flow path unit forms a part of a refrigeration cycle circuit in which the refrigerant circulates.
The flow path unit of Patent Document 1 is configured by laminating a pair of plate members. The flow path unit has a refrigerant flow path through which the refrigerant flows inside the flow path unit. The refrigerant flow path of the flow path unit evaporates a condensed flow path that dissipates heat and condenses the refrigerant, a decompression flow path that decompresses the refrigerant flowing out of the condensing flow path, and a decompressed refrigerant in the decompression flow path. It is composed of an evaporation channel to be allowed to flow.

In addition, a plurality of flow path units are stacked in the thickness direction of the flow path unit. That is, the plurality of stacked flow path units together form one heat exchanger. The plurality of flow path units of the heat exchanger form a plurality of refrigerant flow paths provided in parallel in the refrigeration cycle circuit.

JP-A-2018-197613

As described above, in the heat exchanger of Patent Document 1, since a plurality of refrigerant flow paths are provided in parallel in the refrigeration cycle circuit, as the number of stacked flow path units increases, the condensation flow path (in other words, heat dissipation). The number of parallel refrigerant flow paths including the flow path), the decompression flow path, and the evaporation flow path also increases. The cooling capacity or heating capacity of an air conditioner having a heat exchanger composed of a plurality of flow path units of Patent Document 1 is determined by the number of layers of the flow path units, and the cooling capacity of the air conditioner increases as the number of layers increases. Alternatively, the heating capacity can be increased.

However, in the heat exchanger in which the plurality of flow path units of Patent Document 1 are laminated, all of the plurality of heat dissipation flow paths are connected in parallel in the refrigerant flow, and all of the plurality of evaporation flow paths are in parallel in the refrigerant flow. It is said to be a connection. Therefore, due to the shape variation of the parts forming the refrigerant flow path and the difference in the refrigerant path, the refrigerant flow rate tends to vary between the plurality of heat dissipation channels, and also between the plurality of evaporation channels. The flow rate of the refrigerant tends to vary.

That is, in the heat exchanger of Patent Document 1, a mutual difference is likely to occur in the refrigerant distribution for each heat dissipation channel in the heat dissipation section in which a plurality of heat dissipation channels are formed, and evaporation occurs in the evaporation section in which the plurality of evaporation channels are formed. Mutual differences are likely to occur in the refrigerant distribution for each flow path. While this causes a decrease in the cooling capacity or heating capacity of the air conditioner, it becomes more remarkable as the number of stacked flow path units is increased in order to increase the cooling capacity or heating capacity of the air conditioner. As a result of detailed examination by the inventors, the above was found.

In view of the above points, the present disclosure is a heat exchanger in which a heat radiating unit and an evaporation unit are integrated, and the refrigerant is distributed between a plurality of heat radiating channels and the refrigerant is distributed between a plurality of evaporation channels. It is an object of the present invention to provide a heat exchanger capable of improving each of the above.

To achieve the above objectives, according to one aspect of the present disclosure, heat exchangers are:
A heat exchanger through which refrigerant flows
A side plate portion with a predetermined stacking direction as the thickness direction,
A heat-dissipating portion that has a plurality of heat-dissipating components that are laminated on one side of the side plate portion in the stacking direction and joined to each other to form a heat-dissipating flow path inside, and that dissipates heat from the refrigerant flowing through the heat-dissipating flow path.
It has a plurality of evaporation components that are laminated on one side in the stacking direction with respect to the side plate portion and are joined to each other to form an evaporation flow path inside, and are arranged with respect to the heat dissipation portion in the direction along the side plate portion. It is provided with an evaporation unit that absorbs heat from the refrigerant flowing in the evaporation channel and evaporates the refrigerant.
The heat dissipation part and the evaporation part are fixed to the side plate part respectively,
Outlet position which is one of a plurality of heat dissipation components The heat dissipation component is provided with a heat dissipation part outlet.
Inlet position which is one of a plurality of evaporation components An evaporation component inlet is provided in the evaporation component.
All the heat dissipation channels formed in the plurality of heat dissipation components are connected to the evaporation channel via the heat dissipation section outlet and the evaporation section inlet.

In this way, it is possible to integrate the heat dissipation part and the evaporation part by the side plate part.

Then, it is not necessary that all of the plurality of heat radiating channels are connected in parallel in the refrigerant flow, and the connection relationship between the plurality of heat radiating channels can be made into a desired configuration in the heat radiating section. For example, it is possible to connect all the plurality of heat dissipation channels in series, divide the plurality of heat dissipation channels into a plurality of flow path groups, and connect the plurality of flow path groups in series. Is.

Thereby, it is possible to improve the distribution of the refrigerant between the plurality of heat dissipation channels by comparison with, for example, the heat exchanger of Patent Document 1. The same applies to the plurality of evaporation channels. That is, the distribution of the refrigerant between the plurality of evaporation channels can also be improved by comparison with, for example, the heat exchanger of Patent Document 1.

Note that the reference reference numerals in parentheses attached to each component or the like indicate an example of the correspondence between the component or the like and the specific component or the like described in the embodiment described later.

It is a refrigerant circuit diagram which showed the refrigerating cycle circuit which has the heat exchanger of 1st Embodiment. It is sectional drawing which shows typically the schematic structure of the heat exchanger in 1st Embodiment. FIG. 5 is a cross-sectional view showing a cross section of III-III of FIG. 2 in the first embodiment, and is an excerpt of a third plate on one side of a side plate portion on one side. It is the arrow view of FIG. 2 in the IV direction in 1st Embodiment, and is the figure which showed the 2nd plate of the other side of the other side plate part by the alternate long and short dash line. In the first embodiment, of the pair of plate members constituting the condensation component and the evaporation component, the second plate member arranged on the other side in the stacking direction is viewed as an arrow in the direction indicated by the arrow V in FIG. It is a visual view. In the first embodiment, of the pair of plate members constituting the condensation component and the evaporation component, the first plate member arranged on one side in the stacking direction is an arrow viewed in the direction indicated by the arrow IV in FIG. It is a visual view. In the first embodiment, it is the cross-sectional view which showed the cross section of VII-VII of FIG. 2, and is the figure which shows typically the refrigerant flow in a condensed part by an arrow. It is sectional drawing which showed the cross section of VIII-VIII of FIG. 2 in 1st Embodiment, and is the figure which shows typically the refrigerant flow in the evaporation part by an arrow. It is sectional drawing which showed the cross section of IX-IX of FIG. 4 in 1st Embodiment, and is the figure which showed typically the structure of the internal heat exchange part. In the first embodiment, it is an arrow view of the second plate on one side of the side plate portion on one side as viewed in the direction indicated by the arrow V in FIG. In the first embodiment, it is an arrow view of the first plate on one side of the side plate portion on one side as viewed in the direction indicated by the arrow V in FIG. It is a figure corresponding to FIG. 5, and is the figure which showed the structure in which the 1st communication hole of the condensing plate part on the other side of the 2nd plate member of FIG. 5 is not provided. It is a figure corresponding to FIG. 6, and is the figure which showed the structure which the 1st communication hole of one side evaporation plate part was not provided in the 1st plate member of FIG. It is a refrigerant circuit diagram which showed the refrigerating cycle circuit which has the heat exchanger of 2nd Embodiment, and is the figure which corresponds to FIG. It is sectional drawing which shows typically the schematic structure of the heat exchanger in 2nd Embodiment, and is the figure which corresponds to FIG. FIG. 15 is an arrow view in the XVI direction of FIG. 15, showing a side plate portion on one side of the second embodiment. It is sectional drawing which showed the cross-sectional view of XVII-XVII of FIG. 15 in 2nd Embodiment, and is the figure which showed the other side side plate part of 2nd Embodiment. It is sectional drawing which showed the XVIII-XVIII cross section of FIG. 15 in 2nd Embodiment, and is the figure which showed the 1st plate member excerpted. FIG. 5 is a cross-sectional view showing a cross section of XIX-XIX of FIG. 15 in the second embodiment, which is an excerpt of a second plate member. A cross-sectional view showing the XX-XX cross section of FIG. 15 and corresponding to FIG. 19, in which the first communication hole of the condensing plate portion on the other side and the second communication hole of the evaporation plate portion on the other side of the second plate member of FIG. It is a figure which showed the structure which is not provided. The cross-sectional view of XXI-XXI of FIG. 15 is shown and corresponds to FIG. 19. Of the second plate member of FIG. 19, the second communication hole of the condensing plate portion on the other side and the first communication hole of the evaporation plate portion on the other side are shown. It is a figure which showed the structure which is not provided. It is sectional drawing which shows typically the schematic structure of the heat exchanger in 3rd Embodiment, and is the figure which corresponds to FIG. It is sectional drawing which shows typically the schematic structure of the heat exchanger in 4th Embodiment, and is the figure which corresponds to FIG. In the fourth embodiment, the cross section of XXIV-XXIV of FIG. 23 is shown, and the cross-sectional view corresponding to FIG. 18 is a view showing an excerpt of a one-side condensing plate portion and a one-side evaporation plate portion. In the fourth embodiment, the cross section of XXV-XXV of FIG. 23 is shown, and the cross-sectional view corresponding to FIG. 19 is an excerpt of the other side condensing plate portion and the other side evaporation plate portion. In the fourth embodiment, the cross-sectional view of XXVI-XXVI of FIG. 23 is shown, and the cross-sectional view corresponding to FIG. 20 is an excerpt of the other side condensing plate portion and the other side evaporation plate portion. In the fourth embodiment, the cross-sectional views of XXVII-XXVII of FIG. 23 are shown, and the cross-sectional view corresponding to FIG. 21 is an excerpt of the other side condensing plate portion and the other side evaporation plate portion. FIG. 5 is a cross-sectional view schematically showing a schematic configuration of a heat exchanger in the fifth embodiment, and is a view corresponding to FIG. In the fifth embodiment, the cross-sectional view of XXIX-XXIX of FIG. 28 is shown and the first plate member is excerpted and shown, which corresponds to FIG. In the fifth embodiment, it is a cross-sectional view showing a cross section of XXX-XXX of FIG. 28 and an excerpt of a second plate member, which corresponds to FIG. In the sixth embodiment, it is a cross-sectional view showing a cross section corresponding to the XXIX-XXIX cross section of FIG. 28 and an excerpt of the first plate member, and is a view corresponding to FIG. 29. In the sixth embodiment, it is a cross-sectional view showing a cross section corresponding to the XXX-XXX cross section of FIG. 28 and an excerpt of the second plate member, and is a view corresponding to FIG. 30. In the seventh embodiment, it is a cross-sectional view showing a cross section corresponding to the XXIX-XXIX cross section of FIG. 28 and an excerpt of the first plate member, and is a view corresponding to FIG. 29. In the seventh embodiment, it is a cross-sectional view showing a cross section corresponding to the XXX-XXX cross section of FIG. 28 and an excerpt of the second plate member, and is a view corresponding to FIG. 30. In the seventh embodiment, a part of the heat exchanger is schematically shown in the same manner as in FIG. 15, and is a cross-sectional view showing the XXXV-XXXV cross section of FIG. 33. In the seventh embodiment, the air flow passing through the condensing portion and the air flow passing through the evaporation portion are schematically shown by broken line arrows, and is a diagram corresponding to FIG. 33. In the eighth embodiment, the cross-sectional view corresponding to the XXIX-XXIX cross section of FIG. 28 is shown and the first plate member is excerpted and shown, and is a view corresponding to FIG. 29. In the eighth embodiment, it is a cross-sectional view showing a cross section corresponding to the XXX-XXX cross section of FIG. 28 and an excerpt of the second plate member, and is a view corresponding to FIG. 30. In the ninth embodiment, it is a cross-sectional view schematically showing a part of the heat exchanger with a cross section corresponding to the XXXV-XXXV cross section of FIG. 33, and is a view corresponding to FIG. 35. In the tenth embodiment, it is a cross-sectional view corresponding to FIG. 29 showing an excerpt of the first plate member, and in (a), two first outer edge plate portions are first in the manufacturing process of the first plate member. It shows the state before being bent with respect to the plate member main body, and (b) is the figure which showed the completed 1st plate member. In the tenth embodiment, it is a cross-sectional view corresponding to FIG. 30 which is an excerpt of the second plate member, and in (a), two second outer edge plate portions are second in the manufacturing process of the second plate member. It shows the state before being bent with respect to the plate member main body, and (b) is the figure which showed the completed 2nd plate member. In the tenth embodiment, a part of the heat exchanger is schematically shown in the same manner as in FIG. 15, and is a cross-sectional view showing a cross section of LXII-LXII in FIG. 40. FIG. 10 is a cross-sectional view showing a cross section of LXIII-LXIII of FIG. 40 in the tenth embodiment. In the tenth embodiment, the air flow passing through the condensing portion and the air flow passing through the evaporation portion are schematically shown by broken line arrows, which corresponds to FIG. 40 (b). In the eleventh embodiment, it is a cross-sectional view showing the cross section corresponding to the LXIII-LXIII cross section of FIG. 40, and is the figure corresponding to FIG. 43. In the first modification, which is a modification of the first embodiment, it is a refrigerant circuit diagram showing a refrigeration cycle circuit, and is a diagram corresponding to FIG. 1. Shapes of one side condensed tank space, the other side condensed tank space, the condensed flow path, the one side evaporation tank space, the other side evaporation tank space, and the evaporation flow path of the second modification which is a modification of the second embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. Shapes of one side condensed tank space, the other side condensed tank space, the condensed flow path, the one side evaporation tank space, the other side evaporation tank space, and the evaporation flow path of the third modification which is a modification of the fourth embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. Shapes of one side condensed tank space, the other side condensed tank space, the condensed flow path, the one side evaporation tank space, the other side evaporation tank space, and the evaporation flow path of the fourth modification which is a modification of the second embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. Shapes of one side condensed tank space, the other side condensed tank space, the condensed flow path, the one side evaporation tank space, the other side evaporation tank space, and the evaporation flow path of the fifth modification which is a modification of the second embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. Each shape of the one-sided condensing tank space, the other-side condensing tank space, the condensing flow path, the one-sided evaporation tank space, the other-side evaporation tank space, and the evaporation flow path of the sixth modification, which is a modification of the fourth embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. Each shape of the one-sided condensing tank space, the other-side condensing tank space, the condensing flow path, the one-sided evaporation tank space, the other-side evaporation tank space, and the evaporation flow path of the seventh modification, which is a modification of the fourth embodiment. It is a figure which showed the arrangement, and is the figure which corresponds to FIG. In the eighth modification, which is a modification of the second embodiment, it is a refrigerant circuit diagram showing a refrigeration cycle circuit, and is a diagram corresponding to FIG. In the ninth modification, which is a modification of the first embodiment, it is a cross-sectional view showing a cross section corresponding to the VIII-VIII cross section of FIG. 2, and is a view corresponding to FIG.

Hereinafter, each embodiment will be described with reference to the drawings. In each of the following embodiments, the same or equal parts are designated by the same reference numerals in the drawings.

(First Embodiment)
As shown in FIG. 1, the heat exchanger 10 of the present embodiment constitutes a part of the refrigeration cycle circuit 12 in which the refrigerant circulates. That is, in the refrigeration cycle circuit 12, the refrigerant compressed by the compressor 14 included in the refrigeration cycle circuit 12 flows into the heat exchanger 10, and the refrigerant flowing into the heat exchanger 10 flows through the heat exchanger 10. Then, it is sucked into the compressor 14.

The heat exchanger 10 exchanges heat between the air flowing into the air-conditioned space where cooling or heating is performed and the refrigerant. For example, when the air-conditioned space is cooled, the heat exchanger 10 cools the air flowing to the air-conditioned space with a refrigerant. Further, when the air-conditioned space is heated, the heat exchanger 10 heats the air flowing to the air-conditioned space with a refrigerant.

As shown in FIGS. 1 and 2, the heat exchanger 10 of the present embodiment is configured by brazing and joining a plurality of constituent members made of a metal such as an aluminum alloy to each other. The heat exchanger 10 of the present embodiment includes a condensing unit 20 that functions as a condenser, an evaporation unit 22 that functions as an evaporator, an internal heat exchange unit 28 that functions as an internal heat exchanger, and a side plate unit 30 on one side. The other side plate portion 32, the tubular inlet pipe 34, and the tubular outlet pipe 36 are provided.

As shown in FIGS. 2 to 4, the one-side side plate portion 30 and the other-side side plate portion 32 form a substantially plate shape with a predetermined stacking direction Ds as a thickness direction and a vertical direction Dg as a longitudinal direction. There is. The stacking direction Ds is a direction intersecting the vertical direction Dg, strictly speaking, a direction orthogonal to the vertical direction Dg. Note that FIG. 2 shows a cross section of II-II of FIG. Further, in the present embodiment, the direction orthogonal to both the stacking direction Ds and the vertical direction Dg is referred to as the heat exchanger width direction Dw.

The one side plate portion 30 is arranged at one end of the heat exchanger 10 in the stacking direction Ds, and the other side plate portion 32 is arranged at the other end of the heat exchanger 10 in the stacking direction Ds. Has been done. The condensing portion 20, the evaporating portion 22, and the internal heat exchange portion 28 are arranged between the one side side plate portion 30 and the other side side plate portion 32 in the stacking direction Ds.

That is, the one-side side plate portion 30 is arranged on one side of the stacking direction Ds with respect to the condensing portion 20, the evaporating portion 22, and the internal heat exchange portion 28, and the other side side plate portion 32 is the condensing portion 20, the evaporating portion, and the evaporating portion. It is arranged on the other side of the stacking direction Ds with respect to 22 and the internal heat exchange portion 28. Then, the one side side plate portion 30 and the other side side plate portion 32 have a condensing portion 20, an evaporation portion 22, and an internal heat exchange portion 28 between the one side side plate portion 30 and the other side side plate portion 32. Is sandwiched between.

The condensing portion 20 has a laminated structure in which a plurality of condensed constituent portions 201 having the laminating direction Ds in the thickness direction and the vertical direction Dg in the longitudinal direction are laminated in the laminating direction Ds. That is, the condensing unit 20 has a plurality of condensed components 201, and the plurality of condensed components 201 are laminated in the stacking direction Ds and joined to each other.

Then, as shown in FIGS. 2, 5, and 6, inside the plurality of condensing components 201, there is an internal space composed of one-sided condensing tank space 201a, the other-side condensing tank space 201b, and the condensing flow path 201c, respectively. Is formed. The one-side condensing tank space 201a, the other-side condensing tank space 201b, and the condensing flow path 201c are spaces through which the refrigerant flows.

One side condensing tank space 201a is connected to one end of the condensing flow path 201c, and the other side condensing tank space 201b is connected to the other end of the condensing flow path 201c. The condensing flow path 201c extends, for example, along a corrugated path that reciprocates a plurality of times in the vertical direction Dg. In the present embodiment, the condensing flow path 201c extends along a corrugated path that reciprocates three times in the vertical direction Dg.

The condensing flow path 201c is arranged above the one-sided condensing tank space 201a and the other-side condensing tank space 201b in the vertical direction Dg. Further, the one-sided condensing tank space 201a is arranged on one side of the heat exchanger width direction Dw with respect to the other-side condensing tank space 201b.

Further, as shown in FIGS. 2 and 7, at least one side condensing tank space 201a or the other side condensing tank space 201b communicates with each other between the condensing components 201 adjacent to each other.

The refrigerant compressed and discharged by the compressor 14 (see FIG. 1) flows into the condensing section 20 through the inlet pipe 34 as shown by arrows Fi and F1a, and the refrigerant flows into the condensing flow path of each condensing component 201. It flows to 201c. Then, the condensing unit 20 as a heat radiating unit that dissipates heat from the refrigerant exchanges heat between the air around the condensing unit 20 and the refrigerant flowing in the condensing flow path 201c, thereby dissipating heat from the refrigerant and condensing the refrigerant.

The arrows F2a, F2b, and F2c in FIG. 7 indicate the refrigerant flow in the plurality of one-sided condensing tank spaces 201a adjacent to each other in the stacking direction Ds and connected to each other. Further, arrows F3a and F3b each indicate a refrigerant flow in a plurality of other side condensing tank spaces 201b adjacent to each other in the stacking direction Ds and connected to each other. Further, arrows F4a to F4h each indicate a refrigerant flow in the condensation flow path 201c.

The evaporation unit 22 has a laminated structure in which a plurality of evaporation components 221 having the lamination direction Ds in the thickness direction and the vertical direction Dg in the longitudinal direction are laminated in the lamination direction Ds. That is, the evaporation component 22 has a plurality of evaporation components 221 and the plurality of evaporation components 221 are laminated in the stacking direction Ds and joined to each other.

Then, as shown in FIGS. 2, 5 and 6, the internal space including the one-side evaporation tank space 221a, the other-side evaporation tank space 221b and the evaporation flow path 221c is inside the plurality of evaporation components 221 respectively. Is formed. The one-side evaporation tank space 221a, the other-side evaporation tank space 221b, and the evaporation flow path 221c are spaces through which the refrigerant flows.

The one-side evaporation tank space 221a is connected to one end of the evaporation flow path 221c, and the other side evaporation tank space 221b is connected to the other end of the evaporation flow path 221c. The evaporation flow path 221c extends, for example, along a corrugated path that reciprocates a plurality of times in the vertical direction Dg. In the present embodiment, the evaporation flow path 221c extends along a corrugated path that reciprocates twice in the vertical direction Dg. The evaporation flow path 221c is formed so that the flow path cross-sectional area is larger than that of the condensation flow path 201c.

The evaporation flow path 221c is arranged below the one-side evaporation tank space 221a and the other-side evaporation tank space 221b in the vertical direction Dg. Further, the one-side evaporation tank space 221a is arranged on one side of the heat exchanger width direction Dw with respect to the other-side evaporation tank space 221b.

Further, as shown in FIGS. 2 and 8, at least one side evaporation tank space 221a or the other side evaporation tank space 221b communicate with each other between the evaporation components 221 adjacent to each other.

The evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20 are arranged side by side in the vertical direction Dg in the order of the evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20. Specifically, the evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20 are arranged side by side in the vertical direction Dg from the upper side in the order of description. That is, the internal heat exchange unit 28 is arranged so as to overlap the evaporation unit 22 on the lower side. The condensing unit 20 is arranged so as to overlap the evaporation unit 22 and the internal heat exchange unit 28 on the lower side. The vertical direction Dg is also a direction along the one side side plate portion 30 and a direction along the other side side plate portion 32.

The refrigerant flowing out of the condensing section 20 passes through the internal heat exchange section 28 and the drawing section 321e included in the other side plate section 32 in the order of description thereof, is depressurized by the drawing section 321e, and then enters the evaporation section 22. Inflow. The refrigerant flow from the condensing portion 20 to the evaporating portion 22 is represented by, for example, arrows F1b to F1f in FIG.

The refrigerant that has flowed into the evaporation section 22 from the drawing section 321e flows into the evaporation flow path 221c of each evaporation component section 221. Then, the evaporation unit 22 exchanges heat between the air around the evaporation unit 22 and the refrigerant flowing in the evaporation flow path 221c, thereby causing the refrigerant to absorb heat and evaporate the refrigerant.

The arrows F5a and F5b in FIG. 8 indicate the refrigerant flow in the plurality of one-sided evaporation tank spaces 221a adjacent to each other in the stacking direction Ds and connected to each other. Further, the arrows F6a and F6b each indicate the refrigerant flow in the plurality of other side evaporation tank spaces 221b adjacent to each other in the stacking direction Ds and connected to each other. Further, arrows F7a to F7g each indicate a refrigerant flow in the evaporation flow path 221c.

As shown in FIG. 2, the one-side side plate portion 30 has a one-sided first plate 301, a one-sided second plate 302, and a one-sided third plate 303, which are plate-shaped members. The one-side side plate portion 30 is configured such that the one-side first plate 301, the one-side second plate 302, and the one-side third plate 303 are laminated and joined to each other. The one-sided first plate 301, the one-sided second plate 302, and the one-sided third plate 303 are arranged in the order of the one-sided first plate 301, the one-sided second plate 302, and the one-sided third plate 303 in the stacking direction Ds. It is stacked from one side to the other.

The condensing portion 20 and the evaporating portion 22 are fixed to the one side side plate portion 30, respectively. Specifically, the condensing portion 20 and the evaporating portion 22 are joined in parallel to the other side of the first plate 301 on one side in the stacking direction Ds. That is, the plurality of condensation constituents 201 and the plurality of evaporation constituents 221 are respectively laminated on the other side of the stacking direction Ds with respect to the one side plate portion 30.

The other side side plate portion 32 has a plate-shaped member, the other side first plate 321 and the other side second plate 322, and the other side first plate 321 and the other side second plate 322 are laminated. It is composed of being joined to each other. The other side first plate 321 and the other side second plate 322 are laminated from one side to the other side in the stacking direction Ds in the order of the other side first plate 321 and the other side second plate 322.

The condensing portion 20 and the evaporating portion 22 are fixed to the other side plate portion 32, respectively. Specifically, the condensing portion 20 and the evaporating portion 22 are joined in parallel to one side of the other side first plate 321 in the stacking direction Ds. That is, the plurality of condensation constituents 201 and the plurality of evaporation constituents 221 are respectively laminated on one side of the stacking direction Ds with respect to the other side plate portion 32.

As shown in FIGS. 2, 4, and 9, the internal heat exchange unit 28 exchanges heat between the refrigerant flowing out of the condensing unit 20 and the refrigerant flowing out of the evaporation unit 22. Therefore, the internal heat exchange portion 28 has a double-tube structure extending in the stacking direction Ds, and has a tubular outer cylinder portion 281 and a tubular inner cylinder inserted into the outer cylinder portion 281. It has a portion 282. The internal heat exchange section 28 is arranged side by side with the condensing section 20 and the evaporation section 22 between the first plate 301 on one side and the first plate 321 on the other side, and the first plate 301 on one side and the first plate on the other side thereof. It is joined to 321 respectively.

The outer cylinder portion 281 has a plurality of outer cylinder

constituent portions

281a and 281b. The outer cylinder portion 281 has a tubular shape extended in the stacking direction Ds by connecting the plurality of outer cylinder

constituent portions

281a and 281b in series in the stacking direction Ds and joining them to each other.

Specifically, the outer cylinder portion 281 includes a plurality of first outer cylinder constituent portions 281a and a plurality of second outer cylinder constituent portions 281b having a shape different from that of the first outer cylinder constituent portion 281a. It has as cylinder

constituent parts

281a and 281b. For example, both the first outer cylinder constituent portion 281a and the second outer cylinder constituent portion 281b have a tubular shape extending in the stacking direction Ds, and the second outer cylinder constituent portion 281b is formed on the first outer cylinder constituent portion 281a. On the other hand, the shape is symmetrical to the stacking direction Ds. The plurality of first outer cylinder constituent portions 281a and the plurality of second outer cylinder constituent portions 281b are alternately connected in series in the stacking direction Ds and brazed to each other. In this way, the outer tubular portion 281 is configured.

The inner cylinder portion 282 is composed of a pipe member extending in the stacking direction Ds. As shown in FIGS. 2 and 10, one end of the inner tubular portion 282 is inserted into a through hole 302a for one end formed in the second plate 302 on one side, and the second through hole 302a on one side is used for the through hole 302a for one end. It is brazed to the plate 302. Further, as shown in FIGS. 2 and 9, the other end of the inner cylinder portion 282 is inserted into the other end through hole 321a formed in the other side first plate 321 and the other end through hole 321a. It is brazed and joined to the side first plate 321.

With such a configuration, the internal heat exchange section 28 has two flow paths extending in the stacking direction Ds, specifically, an outer flow path 28a through which the refrigerant flowing out from the evaporation section 22 flows, and a condensing section 20. An inner flow path 28b through which the refrigerant flowing out of the water flows is formed. The outer flow path 28a is arranged inside the outer cylinder portion 281, and the inner flow path 28b is arranged inside the outer flow path 28a with the cylinder wall of the inner cylinder portion 282 interposed therebetween. There is. Therefore, in the internal heat exchange unit 28, the refrigerant flowing in the outer flow path 28a and the refrigerant flowing in the inner flow path 28b exchange heat with each other via the cylinder wall of the inner cylinder portion 282.

As shown in FIGS. 4, 7, and 9, in addition to the above-mentioned through hole 321a for the other end, the through hole 321b for the inlet and the through hole 321c for the exit are formed in the first plate 321 on the other side. There is. A diaphragm hole 321d that functions as an orifice hole is also formed in the first plate 321 on the other side. That is, the other side side plate portion 32 has a portion of the other side first plate 321 in which the throttle hole 321d is formed as the throttle portion 321e. The throttle portion 321e is an orifice.

An inlet pipe 34 is inserted into the inlet through hole 321b, and the inlet pipe 34 is brazed to the other side first plate 321 at the inlet through hole 321b. As a result, the inlet pipe 34 is connected to the condensing portion 20 so as to communicate with the condensing portion 20.

An outlet pipe 36 is inserted into the outlet through hole 321c, and the outlet pipe 36 is brazed to the other side first plate 321 at the outlet through hole 321c. As a result, the outlet pipe 36 is connected to the internal heat exchange section 28 so as to communicate with the outer flow path 28a of the internal heat exchange section 28.

As shown in FIGS. 2, 4, and 9, in the other side plate portion 32, the other side second plate 322 is brazed and joined to the other side first plate 321 on the other side in the stacking direction Ds. As a result, the other side relay flow path 32a is formed between the other side first plate 321 and the other side relay flow path 32a.

The other side relay flow path 32a extends in the vertical direction Dg, and is provided between the inner flow path 28b of the internal heat exchange portion 28 and the throttle hole 321d in the refrigerant flow. That is, the other side relay flow path 32a is a flow path connecting the refrigerant outlet side of the inner flow path 28b and the refrigerant inlet side of the throttle hole 321d.

As shown in FIGS. 2 and 8, the inlet position evaporation component 222 located at the other end of the stacking direction Ds among the plurality of evaporation components 221 has the evaporation section 22 from the throttle hole 321d as the throttle flow path. An evaporation unit inlet 222a for allowing the refrigerant to flow into the inside is provided. The evaporation unit inlet 222a is included in the one-side evaporation tank space 221a of the inlet position evaporation component 222. The throttle hole 321d of the other side plate portion 32 is connected to the evaporation portion inlet 222a. Therefore, the evaporation unit inlet 222a corresponds to a portion of the one-side evaporation tank space 221a of the inlet position evaporation configuration unit 222 that is connected to the downstream end of the refrigerant flow of the throttle hole 321d.

Further, the hole diameter of the throttle hole 321d of the other side plate portion 32 is set so as to cause a predetermined depressurizing action on the refrigerant passing through the throttle hole 321d. That is, the throttle unit 321e is a fixed throttle that throttles the flow of the refrigerant, and functions as a decompression unit that decompresses the refrigerant flowing out from the condensing unit 20 and then flows it to the evaporation unit 22. Since the internal heat exchange section 28 is provided in the present embodiment, more specifically, the throttle hole 321d of the throttle section 321e flows out from the condensing section 20 and flows out from the condensing section 20 to the inner flow path 28b and the other side of the internal heat exchange section 28. The refrigerant that has passed through the relay flow path 32a flows in.

As shown in FIG. 11, a through hole 301b for a condensing portion and a through hole 301c for gas-liquid separation are formed in the first plate 301 on one side of the one-side side plate portion 30. The through hole 301b for the condensing portion is located below the through hole 301c for gas-liquid separation.

Further, as shown in FIG. 10, in addition to the above-mentioned through hole 302a for one end, the through hole 302b for the condensing portion and the through hole 302c for gas-liquid separation are formed in the second plate 302 on one side. The through hole 302b for the condensing portion is located below the through hole 302a for one end and the through hole 302c for gas-liquid separation, and is arranged so as to be concentric with the through hole 301b for the condensing portion of the first plate 301 on one side. Has been done.

Further, as shown in FIGS. 2 and 3, the one-side third plate 303 has a flow path cover portion 303a and a gas-liquid separation cover portion 303c arranged above the flow path cover portion 303a. ing.

As shown in FIGS. 2 and 7, the outlet position of the plurality of condensed components 201 located at one end of the stacking direction Ds is the outlet of the condensed section in which the refrigerant flows out from the inside of the condensed section 20. 202a is provided. The condensing portion outlet 202a is included in the one-sided condensing tank space 201a of the outlet position condensing component 202. Then, the through hole 301b for the condensing portion of the first plate 301 on one side and the through hole 302b for the condensing portion of the second plate 302 on the one side are connected to the outlet 202a of the condensing portion.

Further, the one-side third plate 303 is brazed to one side of the stacking direction Ds with respect to the one-side second plate 302, whereby the flow path cover portion 303a of the one-side third plate 303 is unilaterally first. A one-sided relay flow path 30a is formed between the two plates 302.

The one-side relay flow path 30a extends in the vertical direction Dg, and is provided between the through hole 302b for the condensing portion of the one-side second plate 302 and the inner flow path 28b of the internal heat exchange portion 28 in the refrigerant flow. There is. That is, the one-side relay flow path 30a is a flow path connecting the condensing part outlet 202a of the condensing part 20 and the refrigerant inlet side of the inner flow path 28b. Due to such a flow path configuration of the refrigerant, the throttle portion 321e of the other side plate portion 32 is provided between the condensing portion outlet 202a and the evaporation portion inlet 222a in the refrigerant flow.

As shown in FIG. 11, the gas-liquid separation through hole 301c of the first plate 301 on one side is composed of a penetration portion 301d on one side, a penetration portion 301e on the other side, and a connecting portion 301f. The one-side penetrating portion 301d and the other-side penetrating portion 301e are formed so as to extend in the vertical direction Dg.

The other side penetrating portion 301e is arranged on the other side opposite to one side in the heat exchanger width direction Dw, slightly away from the one side penetrating portion 301d with respect to the one side penetrating portion 301d. The connecting portion 301f is arranged between the one-side penetrating portion 301d and the other-side penetrating portion 301e, and connects the upper end portion of the one-side penetrating portion 301d and the upper end portion of the other-side penetrating portion 301e.

Further, as shown in FIGS. 8 and 11, the evaporation unit 22 is provided with an evaporation unit outlet 22b that allows the refrigerant to flow out from the inside of the evaporation unit 22. The evaporation portion outlet 22b is an opening hole opened in the stacking direction Ds. The gas-liquid separation through hole 301c is formed so that the other side through hole 301e of the gas-liquid separation through hole 301c exclusively overlaps one side of the stacking direction Ds with respect to the evaporation part outlet 22b.

As shown in FIG. 10, the gas-liquid separation through hole 302c of the second plate 302 on one side is formed so as to extend in the vertical direction Dg. The gas-liquid separation through hole 302c is arranged so as to overlap the other side penetrating portion 301e of the one side first plate 301. On the other hand, the gas-liquid separation through hole 302c of the second plate 302 on one side is arranged away from the one side through portion 301d of the first plate 301 on one side toward the other side in the heat exchanger width direction Dw. Has been done.

As shown in FIGS. 2 and 3, the gas-liquid separation cover portion 303c of the third plate 303 on one side has a shape recessed to one side in the stacking direction Ds, and is inside the cover between the second plate 302 on one side. It forms the space 303d. The cover inner space 303d is a space connected to the gas-liquid separation through hole 302c of the second plate 302 on one side.

The gas-liquid separation cover portion 303c, the first gas-liquid separation component 301g in which the gas-liquid separation through hole 301c is formed in the first plate 301 on one side, and the gas-liquid separation portion 302 in the second plate 302 on one side for gas-liquid separation. The second gas-liquid separation component 302d in which the through hole 302c is formed constitutes the gas-liquid separation unit 26.

That is, the one-side side plate portion 30 has a gas-liquid separation portion 26. Refrigerant flows into the gas-liquid separation unit 26 from the evaporation unit 22 as shown by arrows F8 (see FIGS. 2 and 8). Then, the gas-liquid separation unit 26 functions as an accumulator that separates the gas-liquid of the refrigerant flowing in from the evaporation unit 22. The gas-liquid separation unit 26 is formed in the gas-liquid separation unit 26 while allowing the gas-phase refrigerant out of the gas-liquid separated refrigerants to flow out from the gas-liquid separation unit 26 to the outer flow path 28a of the internal heat exchange unit 28. The liquid phase refrigerant is stored in the liquid storage space 26a.

As shown in FIGS. 3, 10, and 11, the liquid storage space 26a includes the gas-liquid separation through hole 302c of the one-side first plate 301, the other-side penetration portion 301e, and the one-side second plate 302, and the inside of the cover. It is composed of space 303d. In FIGS. 2, 10, 10 and 11, the state in which the liquid phase refrigerant is accumulated in the lower part of the liquid storage space 26a is shown by hatching.

The inner tubular portion 282 of the internal heat exchange portion 28 is inserted through the one-side penetrating portion 301d of the one-sided first plate 301 and then reaches the one-side through hole 302a of the one-sided second plate 302. Then, the one-side penetrating portion 301d of the one-sided first plate 301 communicates with the outer flow path 28a of the internal heat exchange portion 28 at the lower portion thereof. Therefore, the one-side penetrating portion 301d and the connecting portion 301f of the one-side first plate 301 function as a refrigerant lead-out flow path that guides the gas phase refrigerant from the liquid storage space 26a to the outer flow path 28a as shown by arrows F9a and F9b. ..

To elaborate on the configuration of the condensing unit 20, as shown in FIGS. 2 and 7, each of the plurality of condensing components 201 has a pair of plate-shaped

condensing plate portions

201d and 201h, respectively. In each of the plurality of condensing components 201, the pair of condensing

plate portions

201d and 201h are laminated in the stacking direction Ds. Then, the plurality of condensing components 201 are provided with each other so that the pair of condensing

plate portions

201d and 201h form the condensing flow path 201c and the

condensing tank spaces

201a and 201b between the pair of condensing

plate portions

201d and 201h, respectively. It is composed by being joined.

Specifically, the pair of condensing

plate portions

201d and 201h are the one-side condensing plate portion 201d and the other-side condensing plate portion 201h arranged on the other side of the stacking direction Ds with respect to the one-side condensing plate portion 201d. Is.

As shown in FIGS. 2, 5 and 6, one of the pair of condensing

plate portions

201d and 201h, one side condensing plate portion 201d, is a first condensing tank forming portion recessed to one side in the stacking direction Ds. It has a 201e, a second condensation tank forming portion 201f, and a condensing flow path forming portion 201g. Further, the other side condensing plate portion 201h, which is the other of the pair of condensing

plate portions

201d and 201h, condenses with the first condensing tank forming portion 201i and the second condensing tank forming portion 201j recessed toward the other side in the stacking direction Ds. It has a flow path forming portion 201k. The one-side condensed tank space 201a is formed between both of the first condensed tank forming portions 201e and 201i, and the other side condensed tank space 201b is formed between both the second condensed tank forming portions 201f and 201j. ing. Further, the condensed flow path 201c is formed between both condensed flow

path forming portions

201g and 201k.

Further, in the one-side condensing plate portion 201d, the width of the first condensing tank forming portion 201e and the width of the second condensing tank forming portion 201f are the same in the stacking direction Ds, which is larger than the width of the condensing flow path forming portion 201g. Is also getting bigger. Similarly, in the condensing plate portion 201h on the other side, the width of the first condensing tank forming portion 201i and the width of the second condensing tank forming portion 201j are the same in the stacking direction Ds, and the condensing flow path forming portion 201k It is larger than the width of.

Therefore, in the condensing portion 20, the first condensing tank forming portions 201e and 201i are joined to each other and the second condensing tank forming portions 201f and 201j are also joined to each other between the condensing constituent portions 201 adjacent to each other in the condensing portion 20. There is. On the other hand, a ventilation space 20a through which air passes is formed between the condensing flow

path forming portions

201g and 201k among the condensing constituent portions 201 adjacent to each other.

A plurality of the ventilation spaces 20a are formed side by side in the stacking direction Ds, and in the plurality of ventilation spaces 20a, the condensed portion fins which are corrugated fins brazed to the outside of the condensed flow

path forming portions

201 g and 201 k, respectively. 203 is arranged. Then, the condensing portion fin 203 promotes heat exchange between the air passing through the ventilation space 20a and the refrigerant in the condensing portion 20.

As shown in FIGS. 2 and 7, among the plurality of condensed components 201, the condensed components 201 located at one end and the other end of the stacking direction Ds are located between them. The shape is different from that of the condensed component 201. For example, the condensing component 201 located at the end on one side thereof is composed of a condensing plate portion 201h on the other side and a portion 301h of the first plate 301 on the one side facing the condensing plate portion 201h on the other side. There is. Further, the condensing component 201 located at the other end is composed of one side condensing plate portion 201d and a portion 321f of the other side first plate 321 facing the one side condensing plate portion 201d. There is.

Further, as shown in FIGS. 5 to 7, in the one-sided condensing plate portion 201d, the first condensing tank forming portion 201e is formed with the first communication hole 201m penetrating in the stacking direction Ds, and the second condensing tank forming portion 201m is formed. A second communication hole 201n penetrating in the stacking direction Ds is formed in 201f. Similarly, in the other side condensing plate portion 201h, the first condensing tank forming portion 201i is formed with the first communication hole 201o penetrating in the stacking direction Ds, and the second condensing tank forming portion 201j is formed with the stacking direction Ds. A second communication hole 201p is formed through the hole.

The condensing tank space 201a on one side of each of the condensing components 201 adjacent to each other communicates with each other by arranging the first communication holes 201m and 201o so as to overlap each other. Further, the condensing tank space 201b on the other side of the condensing component 201 adjacent to each other communicates with each other by arranging the second communication holes 201n and 201p so as to overlap each other.

However, some of the plurality of condensing components 201 are not provided with any of the first and

second communication holes

201m, 201n, 201o, and 201p. As a result, a plurality of condensed constituent groups 204a to 204d having one or more condensed constituents 201 are configured. In the present embodiment, as the plurality of condensed constituent groups 204a to 204d, the first condensed constituent group 204a, the second condensed constituent group 204b, the third condensed constituent group 204c, and the fourth condensed constituent group 204d are used. It is configured.

In the condensing unit 20, the first condensed component group 204a, the second condensed component group 204b, the third condensed component group 204c, and the fourth condensed component group 204d are arranged in the order of description from the other side in the stacking direction Ds. They are arranged side by side. Then, in the refrigerant flow of the condensing unit 20, the first condensed component group 204a, the second condensed component group 204b, the third condensed component group 204c, and the fourth condensed component group 204d are on the upstream side in the order of description. It is connected in series from to the downstream side.

Further, in the condensation configuration unit group having a plurality of condensation configuration units 201 among the plurality of condensation configuration unit groups 204a to 204d, the plurality of condensation flow paths 201c are connected in parallel in the refrigerant flow.

In order to realize such a flow path of the refrigerant, as shown in the C1 portion of FIG. 7, the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the second condensing component group 204b Is not provided with the first communication hole 201o. Further, as shown in the C2 portion, the second communication hole 201n is not provided in the one-sided condensing plate portion 201d located at one end of the stacking direction Ds in the second condensing component group 204b. Further, as shown in the C3 portion, the first communication hole 201o is not provided in the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the fourth condensing component group 204d. For example, the other side condensing plate portion 201h in which the second communication hole 201p is provided but the first communication hole 201o is not provided is shown in FIG.

The configuration of the evaporation unit 22 is basically the same as the configuration of the condensation unit 20 described above. That is, as shown in FIGS. 2 and 8, each of the plurality of evaporation components 221 has a pair of plate-shaped

evaporation plate portions

221d and 221h. In each of the plurality of evaporation components 221 the pair of

evaporation plate portions

221d and 221h are laminated in the stacking direction Ds. Then, the plurality of evaporation components 221 are provided with each other so that the pair of

evaporation plates

221d and 221h form the evaporation flow path 221c and the

evaporation tank spaces

221a and 221b between the pair of

evaporation plates

221d and 221h, respectively. It is composed by being joined.

Specifically, the pair of

evaporation plate portions

221d and 221h are the one-side evaporation plate portion 221d and the other-side evaporation plate portion 221h arranged on the other side of the stacking direction Ds with respect to the one-side evaporation plate portion 221d. Is.

As shown in FIGS. 2, 5 and 6, one of the pair of

evaporation plate portions

221d and 221h, one side evaporation plate portion 221d, is a first evaporation tank forming portion recessed to one side in the stacking direction Ds. It has 221e, a second evaporation tank forming portion 221f, and an evaporation channel forming portion 221g. Further, the other side evaporation plate part 221h, which is the other of the pair of

evaporation plate parts

221d and 221h, evaporates with the first evaporation tank forming part 221i and the second evaporation tank forming part 221j recessed toward the other side in the stacking direction Ds. It has a flow path forming portion 221k. The one-side evaporation tank space 221a is formed between the two first evaporation tank forming portions 221e and 221i, and the other side evaporation tank space 221b is formed between both the second evaporation

tank forming portions

221f and 221j. ing. Further, the evaporation channel 221c is formed between both evaporation

channel forming portions

221g and 221k.

Further, in the one-side evaporation plate portion 221d, the width of the first evaporation tank forming portion 221e and the width of the second evaporation tank forming portion 221f are the same in the stacking direction Ds, which is larger than the width of the evaporation flow path forming portion 221g. Is also getting bigger. Further, the widths of the evaporation

tank forming portions

221e and 221f in the stacking direction Ds are the same as the widths of the condensing tank forming portions 201e and 201f of the one-side condensing plate portion 201d.

Similarly, in the other side evaporation plate portion 221h, the width of the first evaporation tank forming portion 221i and the width of the second evaporation tank forming portion 221j are the same in the stacking direction Ds, and the evaporation flow path forming portion 221k It is larger than the width of. Further, the widths of the evaporation tank forming portions 221i and 221j in the stacking direction Ds are the same as the widths of the condensing tank forming portions 201i and 201j of the condensing plate portion 201h on the other side.

Therefore, in the evaporation unit 22, the first evaporation tank forming portions 221e and 221i are joined to each other, and the second evaporation

tank forming portions

221f and 221j are also joined to each other between the evaporation constituent parts 221 adjacent to each other. There is. On the other hand, a ventilation space 22a through which air passes is formed between the evaporation flow

path forming portions

221g and 221k among the evaporation constituent parts 221 adjacent to each other.

A plurality of the ventilation spaces 22a are formed side by side in the stacking direction Ds, and in each of the plurality of ventilation spaces 22a, the evaporation part fins which are corrugated fins brazed to the outside of the evaporation flow path forming parts 221g and 221k. 223 is arranged. Then, the evaporation unit fin 223 promotes heat exchange between the air passing through the ventilation space 22a and the refrigerant in the evaporation unit 22.

As shown in FIGS. 2 and 8, the evaporation component 221 located at the other end of the stacking direction Ds among the plurality of evaporation components 221 has a different shape from the other evaporation components 221. For example, the evaporation component 221 located at the other end is composed of a one-side evaporation plate portion 221d and a portion 321g of the other-side first plate 321 facing the one-side evaporation plate portion 221d. There is.

As shown in FIGS. 5, 6 and 8, in the one-side evaporation plate portion 221d, the first evaporation tank forming portion 221e is formed with a first communication hole 221m penetrating in the stacking direction Ds to form a second evaporation tank. A second communication hole 221n penetrating in the stacking direction Ds is formed in the portion 221f. Similarly, in the other side evaporation plate portion 221h, the first evaporation tank forming portion 221i is formed with the first communication hole 221o penetrating in the stacking direction Ds, and the second evaporation tank forming portion 221j is formed with the stacking direction Ds. A second communication hole 221p is formed through the hole.

The evaporation tank space 221a on one side of each of the evaporation components 221 adjacent to each other communicates with each other by arranging the first communication holes 221m and 221o so as to overlap each other. Further, the evaporation tank space 221b on the other side of each of the evaporation components 221 adjacent to each other communicates with each other by arranging the second communication holes 221n and 221p so as to overlap each other.

However, some of the plurality of evaporation components 221 are not provided with any of the first and

second communication holes

221m, 221n, 221o, and 221p. As a result, a plurality of evaporation constituent groups 224a to 224c having one or more evaporation constituents 221 are configured. In the present embodiment, the first evaporation constituent group 224a, the second evaporation constituent group 224b, and the third evaporation constituent group 224c are configured as the plurality of evaporation constituent groups 224a to 224c.

In the evaporation unit 22, the first evaporation component group 224a, the second evaporation component group 224b, and the third evaporation component group 224c are arranged side by side from the other side to one side in the stacking direction Ds in the order of description. .. Then, in the refrigerant flow of the evaporation unit 22, the first evaporation component group 224a, the second evaporation component group 224b, and the third evaporation component group 224c are connected in series from the upstream side to the downstream side in the order of description. ing.

Further, in the evaporation component group having the plurality of evaporation components 221 out of the plurality of evaporation components groups 224a to 224c, the plurality of evaporation flow paths 221c are connected in parallel in the refrigerant flow.

In order to realize such a flow path of the refrigerant, as shown in the E1 part of FIG. 8, the one-side evaporation plate part 221d located at one end of the stacking direction Ds in the first evaporation component group 224a Is not provided with the first communication hole 221 m. Further, as shown in the E2 portion, the second communication hole 221p is not provided in the other side evaporation plate portion 221h located at the other end of the stacking direction Ds in the third evaporation component group 224c. Further, as shown in the E3 portion, the one-side evaporation plate portion 221d located at one end of the stacking direction Ds in the third evaporation component group 224c is not provided with the first communication hole 221m. For example, the one-side evaporation plate portion 221d in which the second communication hole 221n is provided but the first communication hole 221m is not provided is shown in FIG.

As shown in FIGS. 2, 5, and 6, one one-side condensing plate portion 201d, one one-side evaporation plate portion 221d, and one first outer cylinder constituent portion 281a are configured as a single component. .. That is, the one-side condensing plate portion 201d, the one-side evaporation plate portion 221d, and the first outer cylinder constituent portion 281a constitute one first plate member 381. Among the first plate members 381, the one-side condensing plate portion 201d, the first outer cylinder constituent portion 281a, and the one-side evaporation plate portion 221d are arranged in this order from the lower side to the upper side in the vertical direction Dg. It is arranged in.

Therefore, the first plate member 381 has a first outer cylinder constituent portion 281a, which is a portion constituting a part of the internal heat exchange portion 28, between the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d. doing. In short, the first plate member 381 constitutes a part of the internal heat exchange unit 28.

Similarly, one other side condensing plate portion 201h, one other side evaporation plate portion 221h, and one second outer cylinder constituent portion 281b are configured as a single component. That is, the other side condensing plate portion 201h, the other side evaporating plate portion 221h, and the second outer cylinder constituent portion 281b constitute one second plate member 382. Among the second plate members 382, the other side condensing plate portion 201h, the second outer cylinder constituent portion 281b, and the other side evaporation plate portion 221h are arranged in this order from the lower side to the upper side in the vertical direction Dg. It is arranged in.

Therefore, the second plate member 382 has a second outer cylinder constituent portion 281b, which is a portion constituting a part of the internal heat exchange portion 28, between the other side condensing plate portion 201h and the other side evaporation plate portion 221h. doing. In short, the second plate member 382 constitutes a part of the internal heat exchange portion 28.

Both the first plate member 381 and the second plate member 382 are made of a metal having good thermal conductivity such as an aluminum alloy. Further, the plurality of first plate members 381 and the plurality of second plate members 382 are alternately laminated and arranged in the stacking direction Ds, and are brazed to each other. In the present embodiment, the first plate member 381 and the second plate member 382 are joined to a plate member located at one end of the stacking direction Ds, that is, the first plate 301 on one side. The plate member is a second plate member 382. The plate member located at the other end of the laminated structure in the stacking direction Ds, that is, the plate member joined to the first plate 321 on the other side is referred to as the first plate member 381.

Further, in the present embodiment, the second plate member 382 has the front and back surfaces of the stacking direction Ds with respect to the first plate member 381, except for the presence or absence of the

communication holes

201m, 201n, 201o, 201p, 221m, 221n, 221o, and 221p. It is said that the shape is inverted. Both the first plate member 381 and the second plate member 382 have a shape symmetrical with respect to the heat exchanger width direction Dw. Therefore, parts are standardized between at least a part of the plurality of first plate members 381 and at least a part of the plurality of second plate members 382.

Further, in the pair of the first plate member 381 and the second plate member 382, the internal space of the condensation component 201, the internal space of the evaporation component 221 and the outer flow path 28a of the internal heat exchange unit 28 are mutually connected. It is an independent space. That is, the first plate member 381 is formed so as to separate the condensing flow path 201c, the outer flow path 28a, and the evaporation flow path 221c formed by the first plate member 381 from each other. Similarly to this, the second plate member 382 is also formed so as to separate the condensing flow path 201c, the outer flow path 28a, and the evaporation flow path 221c formed by the second plate member 382 from each other.

In the heat exchanger 10 configured as described above and the refrigeration cycle circuit 12 including the heat exchanger 10, the refrigerant flows as follows. First, as shown in FIGS. 1, 2, and 7, the refrigerant discharged from the compressor 14 passes through the inlet pipe 34 as shown by arrows Fi and F1a, and the first condensed component group 204a of the condensed portion 20 Of these, a plurality of one-sided condensing tank spaces 201a flow into the upstream space in which they are connected. The refrigerant that has flowed into the upstream space of the first condensed component group 204a is distributed to the plurality of condensed flow paths 201c while flowing to one side of the stacking direction Ds as shown by the arrow F2a in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other as shown by arrows F4a, F4b, and F4c, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of condensing tank spaces 201b on the other side are connected. Further, the refrigerant is transferred from the downstream space of the first condensing component group 204a to the upstream space in which a plurality of other side condensing tank spaces 201b of the second condensing component group 204b are connected as shown by an arrow F3a. Inflow. The refrigerant that has flowed into the upstream space of the second condensed component group 204b is distributed to the plurality of condensed flow paths 201c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other as shown by arrows F4d and F4e, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of one-sided condensing tank spaces 201a are connected. Further, the refrigerant flows from the downstream space of the second condensed component group 204b into the one-sided condensed tank space 201a as the upstream space of the third condensed component group 204c as shown by an arrow F2b. The refrigerant that has flowed into the upstream space of the third condensed component group 204c flows from the upstream space to the condensed flow path 201c. The refrigerant flowing in the condensing flow path 201c exchanges heat with the air around the condensing component 201 while flowing as shown by the arrow F4f, and dissipates heat to the air.

Then, the refrigerant flows from the condensing flow path 201c into the condensing tank space 201b on the other side as a downstream space. Further, the refrigerant is transferred from the downstream space of the third condensed component group 204c to the upstream space in which a plurality of other side condensed tank spaces 201b of the fourth condensed component group 204d are connected as shown by an arrow F3b. Inflow. The refrigerant that has flowed into the upstream space of the fourth condensed component group 204d is distributed to the plurality of condensed flow paths 201c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other as shown by arrows F4g and F4h, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of one-sided condensing tank spaces 201a are connected. The refrigerant that has flowed into the space on the downstream side of the fourth condensing component group 204d is, as shown by arrows F1b and F2c, from the condensing portion outlet 202a to the condensing portion through hole 301b of the first plate 301 on one side and the second on one side. It flows into the one-side relay flow path 30a through the through hole 302b for the condensing portion of the plate 302.

In the one-side relay flow path 30a, the refrigerant flows from the lower side to the upper side of the vertical Dg as shown by the arrow F1c in FIG. 2, and the refrigerant flows from the one-side relay flow path 30a to the internal heat exchange portion as shown by the arrow F1d. It flows into the inner flow path 28b of 28. In the inner flow path 28b, the refrigerant flows from one side of the stacking direction Ds to the other side, and the refrigerant flows from the inner flow path 28b to the other side relay flow path 32a as shown by the arrow F1e.

In the other side relay flow path 32a, the refrigerant flows from the lower side to the upper side in the vertical direction Dg, and the refrigerant flows from the other side relay flow path 32a through the throttle hole 321d of the other side first plate 321 into the evaporation unit 22. Inflow to. At this time, the refrigerant flow is throttled in the throttle hole 321d, so that the refrigerant pressure after passing through the throttle hole 321d is lower than the refrigerant pressure before passing through the throttle hole 321d.

As shown in FIGS. 2 and 8, the refrigerant that has passed through the throttle hole 321d of the throttle section 321e flows into the evaporation section 22 from the evaporation section inlet 222a. Therefore, all of the plurality of condensing flow paths 201c formed in the condensing section 20 evaporate the evaporating section 22 through the condensing section outlet 202a (see FIG. 7), the throttle section 321e, and the evaporation section inlet 222a in the order of description. It is connected to the flow path 221c.

The refrigerant flowing into the evaporation unit 22 from the evaporation unit inlet 222a first flows into the upstream space in which a plurality of one-side evaporation tank spaces 221a of the first evaporation component group 224a are connected. The refrigerant that has flowed into the upstream space of the first evaporation component group 224a is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds as shown by the arrow F5a in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other as shown by arrows F7a and F7b, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of other side evaporation tank spaces 221b are connected. Further, the refrigerant is transferred from the downstream space of the first evaporation component group 224a to the upstream space in which a plurality of other side evaporation tank spaces 221b of the second evaporation component group 224b are connected as shown by an arrow F6a. Inflow. The refrigerant that has flowed into the upstream space of the second evaporation component group 224b is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other as shown by arrows F7c and F7d, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of one-side evaporation tank spaces 221a are connected. Further, the refrigerant is transferred from the downstream space of the second evaporation component group 224b to the upstream space in which a plurality of one-side evaporation tank spaces 221a of the third evaporation component group 224c are connected as shown by an arrow F5b. Inflow. The refrigerant that has flowed into the upstream space of the third evaporation component group 224c is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other as shown by arrows F7e, F7f, and F7g, is exchanged with air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of other side evaporation tank spaces 221b are connected. The refrigerant that has flowed into the downstream space of the third evaporation component group 224c flows from the evaporation part outlet 22b to the liquid storage space 26a of the gas-liquid separation part 26 of the one-side side plate part 30 as shown by arrows F6b and F8. Flow to.

In the gas-liquid separation unit 26, the refrigerant is gas-liquid separated, and among the gas-liquid separated refrigerants, the gas-phase refrigerant flows to the outer flow path 28a of the internal heat exchange unit 28 as shown by arrows F9a and F9b. On the other hand, among the gas-liquid separated refrigerants, the liquid-phase refrigerant accumulates in the liquid storage space 26a.

The refrigerant flowing in the outer flow path 28a of the internal heat exchange unit 28 exchanges heat with the refrigerant flowing in the inner flow path 28b while flowing from one side to the other side of the stacking direction Ds as shown by arrows FA1 and FA2 in FIG. Be made to. Then, the refrigerant flowing through the outer flow path 28a flows out from the outlet pipe 36 to the outside of the heat exchanger 10 as shown by the arrow Fo. The refrigerant flowing out of the outlet pipe 36 is sucked into the compressor 14 as shown in FIG. As described above, the refrigerant flows in the heat exchanger 10 and the refrigeration cycle circuit 12.

As described above, in the present embodiment, since the condensing unit 20 corresponds to the heat radiating unit, the condensing component 201 may be referred to as a heat radiating component, and the condensing flow path 201c may be referred to as a heat radiating channel. .. Further, the one-side condensing plate portion 201d may be referred to as a one-side heat radiating plate portion, the other side condensing plate portion 201h may be referred to as the other side heat radiating plate portion, and the outlet position condensing configuration portion 202 may be referred to as an outlet position heat radiating plate portion. It may be referred to as a component portion, and the condensing portion outlet 202a may be referred to as a heat radiating portion outlet.

As described above, according to the present embodiment, as shown in FIGS. 2, 7, and 8, the plurality of condensed components 201 and the plurality of evaporation components 221 are respectively laminated on the other side plate portion 32. It is laminated on one side of the direction Ds. Then, the evaporation portion 22 is arranged side by side with respect to the condensing portion 20 in the direction along the other side side plate portion 32 (specifically, the vertical direction Dg), and is condensed on the other side side plate portion 32. The unit 20 and the evaporation unit 22 are fixed to each other.

Therefore, regardless of whether the condensing portion 20 and the evaporating portion 22 are integrated by the first plate member 381 and the second plate member 382, the condensing portion 20 and the evaporating portion 22 are formed by the other side plate portion 32. Can be integrated.

Further, all of the plurality of condensing flow paths 201c formed in the condensing unit 20 are connected to the evaporation flow path 221c of the evaporation unit 22 via the condensing unit outlet 202a and the evaporation unit inlet 222a. That is, the heat exchanger 10 is not limited to the structure in which all of the plurality of condensing flow paths 201c are connected in parallel in the refrigerant flow. Therefore, in the present embodiment, the connection relationship between the plurality of condensing flow paths 201c is condensed by arbitrarily defining the locations where the

communication holes

201m, 201n, 201o, and 201p shown in the parts C1 to C3 of FIG. 7 are not provided. It is easy to obtain a desired configuration in the unit 20.

For example, by defining the presence or absence of the

communication holes

201m, 201n, 201o, and 201p (see FIGS. 5 and 6) as shown in FIG. 7, the connection relationship between the plurality of condensing flow paths 201c can be set as in the present embodiment. Can be easily realized. That is, a plurality of condensed constituent groups 204a to 204d in which one or more condensed flow paths 201c are formed are connected in series in the refrigerant flow, and the condensed flow paths 201c in the individual condensed constituent groups 204a to 204d are connected. Can be easily realized by connecting in parallel.

Further, although different from the present embodiment, depending on the arrangement of the places where the

communication holes

201m, 201n, 201o, and 201p are not provided, the plurality of condensing flow paths 201c formed in the condensing portion 20 are all connected in series in the refrigerant flow. Can be easily realized.

Thereby, it is possible to improve the refrigerant distribution between the plurality of condensing flow paths 201c by comparison with, for example, the heat exchanger of Patent Document 1. Improving the refrigerant distribution is, in other words, suppressing the variation in the refrigerant flow rate.

Further explaining, for example, if all the condensing flow paths 201c of the condensing section 20 are limited to parallel connection in the refrigerant flow, as the number of laminated condensing components 201 increases, a plurality of condensing channels The distributability of the refrigerant to 201c deteriorates. In short, the variation in the refrigerant flow rate becomes large in the distribution of the refrigerant to each of the plurality of condensing flow paths 201c. On the other hand, the heat exchanger 10 of the present embodiment does not have a structure in which all of the plurality of condensing flow paths 201c are connected in parallel in the refrigerant flow, so that the number of laminated condensing components 201 increases. However, it is possible to avoid deterioration of the refrigerant distributability to the plurality of condensing channels 201c.

Further, as shown in FIGS. 2 and 8, similarly to the evaporation channel 221c, the heat exchanger 10 has a structure in which all of the plurality of evaporation channels 221c are connected in parallel in the refrigerant flow. Absent. Therefore, in the present embodiment, the connection relationship between the plurality of evaporation channels 221c is evaporated by arbitrarily defining the locations where the

communication holes

221m, 221n, 221o, and 221p shown in the parts E1 to E3 of FIG. 8 are not provided. It is easy to obtain a desired configuration in the unit 22.

Therefore, like the above-mentioned refrigerant distribution between the plurality of condensing channels 201c, the refrigerant distribution between the plurality of evaporation channels 221c can be improved as compared with, for example, the heat exchanger of Patent Document 1. It is possible. It should be noted that the ability to avoid deterioration of the refrigerant distributability is particularly effective in the evaporation unit 22 rather than in the condensation unit 20. Further, the presence / absence of each communication hole 201m to 201p, 221m to 221p can be easily selected depending on the presence or absence of the hole drilling step in the production of the first plate member 381 and the second plate member 382.

Further, as described in Patent Document 1, for example, if all the condensing flow paths 201c of the condensing portion 20 are limited to parallel connection in the refrigerant flow, the pressure loss of the refrigerant in the condensing portion 20 can be reduced, but condensation occurs. It is difficult to optimize the flow velocity of the refrigerant in the flow path 201c. Therefore, in that case, the heat transfer coefficient between the refrigerant and the member in contact with the refrigerant becomes low, and it is difficult to optimize the cooling capacity or the heating capacity.

On the other hand, in the heat exchanger 10 of the present embodiment, a place where the

communication holes

201m, 201n, 201o, and 201p are not provided is defined so as to obtain a refrigerant flow velocity capable of optimizing the cooling capacity or the heating capacity. Is easy.

With respect to such optimization of cooling capacity or heating capacity, the same effect can be obtained in the evaporation unit 22.

Further, when manufacturing the heat exchanger 10 of the present embodiment, the first plate member 381 and the second plate member 382 are alternately alternated based on one of the one side plate portion 30 and the other side plate portion 32. It is possible to assemble the heat exchanger 10 by laminating the heat exchanger 10. That is, the heat exchanger 10 can be assembled in one direction by laminating and assembling the constituent members in one direction. As a result, the manufacturing work of the heat exchanger 10 becomes simple, which leads to a reduction in the cost of the heat exchanger 10.

Further, as shown in FIGS. 2, 5 and 6, the condensing portion 20, the evaporating portion 22, and the outer tubular portion 281 of the internal heat exchange portion 28 are integrated by the first and

second plate members

381 and 382. There is. Therefore, it is easy to reduce the size and cost of the heat exchanger 10 as compared with the case where they have separate configurations. Then, the condensed water generated in the evaporation unit 22 can be transmitted to the condensing unit 20 through the first and

second plate members

381 and 382, so that problems such as liquid splashing of the condensed water can be suppressed and the condensing unit 20 can be suppressed. It is possible to reduce the loss of condensed water that contributes to heat dissipation. This leads to higher performance of the heat exchanger 10.

In addition, the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d can be molded by one molding mold, and the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d have different shapes (for example, the optimum shape). ) Can be. The same applies to the condensing plate portion 201h on the other side and the evaporation plate portion 221h on the other side. Therefore, this also makes it possible to improve the performance and reduce the cost of the heat exchanger 10.

Further, according to the present embodiment, as shown in FIGS. 2, 7, and 8, the other side plate portion 32 has a throttle portion 321e as a pressure reducing portion for reducing the pressure of the refrigerant, and the throttle portion 321e is provided. , It is provided between the condensing part outlet 202a and the evaporation part inlet 222a in the refrigerant flow. Therefore, it is possible to suppress the expansion of the physique of the heat exchanger 10 including the throttle portion 321e. Then, for example, the throttle portion 321e can be easily configured as compared with the heat exchanger in which a large number of flow path units of Patent Document 1 are laminated.

More specifically, for example, in a heat exchanger in which a large number of flow path units of Patent Document 1 are stacked, the same number of throttles as the number of stacks are provided in parallel in the refrigerant flow. However, in order to obtain an appropriate decompression effect of the refrigerant, the more parallel the number of the drawn portions, the finer and more accurate the shape is required, and there are a plurality of drawn portions due to variations in member processing, brazing, etc. Shape variation is likely to occur between the drawn portions. Therefore, in the heat exchanger of Patent Document 1, the cooling / heating performance tends to be deteriorated due to the shape variation between the plurality of throttle portions.

On the other hand, in the present embodiment, since it is not necessary to provide a plurality of throttle portions 321e in parallel, the throttle portion 321e can be easily configured as described above as compared with, for example, the heat exchanger of Patent Document 1. Therefore, it is possible to avoid a decrease in heating / cooling performance. Then, the diaphragm portion 321e can be configured as, for example, one simple diaphragm portion.

Further, since the other side plate portion 32 has the throttle portion 321e, the throttle portion 321e can be integrally brazed together with the condensing portion 20 and the evaporation portion 22. Therefore, it is possible to suppress the overall physique expansion of the condensing unit 20, the evaporation unit 22, and the drawing unit 321e. Further, it is easy to reduce the cost of the heat exchanger 10 including the throttle portion 321e. Further, when manufacturing the heat exchanger 10, the above-mentioned one-way assembly is possible.

Further, according to the present embodiment, as shown in FIG. 2, the stacking direction Ds is a direction that intersects the vertical direction Dg. The condensing portion 20 is arranged so as to overlap the evaporating portion 22 on the lower side. Therefore, it is possible to improve the heat dissipation performance of the condensing unit 20 due to the watering effect of the condensed water generated in the evaporating unit 22 on the condensing unit 20 due to the action of gravity. Then, since the evaporation process of evaporating the condensed water generated in the evaporating unit 22 by the heat of the condensing unit 20 can be performed, it is possible to eliminate or reduce the drain water which is the discharged condensed water.

Further, according to the present embodiment, as shown in FIGS. 2, 5 and 6, each of the plurality of condensing components 201 has a pair of plate-shaped

condensing plate portions

201d and 201h, respectively. Then, the pair of

condensed plate portions

201d and 201h are laminated in the stacking direction Ds, and the condensed flow path 201c is formed between the pair of

condensed plate portions

201d and 201h, respectively. It is constructed by being joined to each other. Therefore, the condensed configuration unit 201 can have a simple configuration. At the same time, depending on the shape of the internal space of the condensing component 201c such as the shape of the condensing flow path 201c, it is easy to make the component constituting the one-side condensing plate section 201d and the component constituting the other-side condensing plate section 201h the same component. There is a merit that it can be configured in.

Further, according to the present embodiment, each of the plurality of evaporation components 221 has a pair of plate-shaped

evaporation plate portions

221d and 221h. Then, each of the plurality of evaporation components 221 is such that the pair of

evaporation plate portions

221d and 221h are laminated in the stacking direction Ds and the evaporation flow path 221c is formed between the pair of

evaporation plate portions

221d and 221h. It is composed by being joined to each other. Therefore, the evaporation component 221 can have a simple structure. At the same time, depending on the shape of the internal space of the evaporation component 221 such as the shape of the evaporation flow path 221c, the parts constituting the one-side evaporation plate portion 221d and the parts constituting the other-side evaporation plate portion 221h can be easily made into the same parts. There is a merit that it can be configured in.

Further, according to the present embodiment, the one-side condensing plate portion 201d, the one-side evaporation plate portion 221d, and the first outer cylinder constituent portion 281a constitute one first plate member 381. At the same time, the condensing plate portion 201h on the other side, the evaporation plate portion 221h on the other side, and the second outer cylinder constituent portion 281b constitute one second plate member 382.

Therefore, in addition to the

side plate portions

30 and 32 on both sides, the first plate member 381 and the second plate member 382 also integrally form the condensing portion 20, the evaporation portion 22, and the outer cylinder portion 281 of the internal heat exchange portion 28. It is possible to do.

Further, not only the

side plate portions

30 and 32 on both sides but also the first plate member 381 and the second plate member 382 support the condensing portion 20, the evaporation portion 22, and the outer cylinder portion 281 of the internal heat exchange portion 28 with each other. It will be. Therefore, for example, the heat exchanger 10 is more robust than the configuration in which the condensing portion 20, the evaporation portion 22, and the outer cylinder portion 281 of the internal heat exchange portion 28 are connected to each other only by the

side plate portions

30 and 32 on both sides. It is possible to make things.

Further, according to the present embodiment, the outlet position condensing component 202 is a condensing component located at one end of the stacking direction Ds among the plurality of condensing components 201. The inlet position evaporation component 222 is an evaporation component located at the other end of the plurality of evaporation components 221 in the stacking direction Ds. Therefore, as compared with the case where this is not the case, it is easy to provide a path for the refrigerant from the outlet 202a of the condensing section to the inlet 222a of the evaporation section, so that it is easy to simplify the path of the refrigerant. For example, it is possible to provide a refrigerant path from the condensing portion outlet 202a to the evaporation portion inlet 222a by using the

side plate portions

30 and 32.

Further, according to the present embodiment, as shown in FIGS. 2, 5 and 6, the heat exchanger 10 includes an internal heat exchange unit 28, and the first plate member 381 and the second plate member 382 have internal heat, respectively. It constitutes a part of the exchange unit 28. Therefore, for example, as compared with the case where the internal heat exchange unit 28 is configured separately from the

plate members

381 and 382, the expansion of the physique of the heat exchanger 10 due to the provision of the internal heat exchange unit 28 is suppressed. At the same time, it is easy to reduce the number of parts.

Further, according to the present embodiment, the evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20 are arranged side by side in the order of the evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20 in the vertical direction Dg. .. The first plate member 381 has a first outer cylinder constituent portion 281a that forms a part of the internal heat exchange portion 28 between the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d. The second plate member 382 has a second outer cylinder constituent portion 281b, which is a portion constituting a part of the internal heat exchange portion 28, between the other side condensing plate portion 201h and the other side evaporation plate portion 221h. doing. Therefore, for example, as compared with the case where the

plate members

381 and 382 have different configurations, the refrigerant flow path connecting the evaporation unit 22 and the internal heat exchange unit 28, and the condensing unit 20 and the internal heat exchange unit 28 are provided. It is difficult for the connecting refrigerant flow paths to overlap with each other.

Further, according to the present embodiment, as shown in FIGS. 2 and 8, in the one-side side plate portion 30, the one-side first plate 301, the one-side second plate 302, and the one-side third plate 303 are laminated. It is configured by being laminated in the direction Ds. A liquid storage space 26a for storing the liquid phase refrigerant is formed in the gas-liquid separation portion 26 included in the one-side side plate portion 30. In the liquid storage space 26a, the gas-liquid separation through hole 301c of the first plate 301 on one side and the gas-liquid separation through hole 302c of the second plate 302 on the one side are overlapped with each other and the liquid is stored in the stacking direction Ds. It is formed by covering one side of the space 26a with the third plate 303 on one side.

In short, the through

holes

301c and 302c formed in the plurality of

plates

301 and 302 of the one side plate portion 30 are overlapped with each other, and the liquid storage space is provided by a plate 303 different from the plurality of

plates

301 and 302. One side of 26a is covered. As a result, the liquid storage space 26a is formed.

Therefore, by utilizing the thickness of the one-side side plate portion 30, the gas-liquid separation portion 26 can be provided on the one-side side plate portion 30 while suppressing the width occupied by the gas-liquid separation portion 26 in the stacking direction Ds. Is.

(Second Embodiment)
Next, the second embodiment will be described. In this embodiment, the differences from the above-described first embodiment will be mainly described. In addition, the same or equivalent parts as those in the above-described embodiment will be omitted or simplified. This also applies to the description of the embodiment described later.

As shown in FIGS. 14 and 15, the heat exchanger 10 of the present embodiment includes a condensing unit 20, an evaporation unit 22, and a throttle unit 321e, as in the first embodiment. However, unlike the first embodiment, the heat exchanger 10 of the present embodiment does not include the gas-liquid separation unit 26 (see FIG. 2) and the internal heat exchange unit 28. Since the internal heat exchange portion 28 is not provided, the first plate member 381 is configured to include the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d, but the first outer cylinder constituent portion 281a (See FIG. 2) is not included. The second plate member 382 includes a condensing plate portion 201h on the other side and an evaporation plate portion 221h on the other side, but does not include the second outer cylinder forming portion 281b (see FIG. 2).

In FIG. 15, the cross sections of the first plate member 381, the second plate member 382, the condensing part fin 203, and the evaporation part fin 223 are shown by thick lines instead of hatching. Further, in order to make the illustration easy to see, FIG. 15 shows a deliberate spacing (that is, actually) between the first plate member 381, the second plate member 382, the one-side side plate portion 30, and the other-side side plate portion 32. It is displayed with a space (no interval). These things are the same in the later figure corresponding to FIG.

The refrigeration cycle circuit 12 of the present embodiment includes a gas-liquid separator 40 corresponding to the gas-liquid separation unit 26 of the first embodiment as a device different from the heat exchanger 10. The gas-liquid separator 40 is an accumulator having the same function as the gas-liquid separator 26, and is provided on the downstream side of the refrigerant flow with respect to the outlet pipe 36 of the heat exchanger 10 and on the upstream side of the refrigerant flow with respect to the compressor 14. ..

As shown in FIGS. 15 and 16, in the present embodiment, the one-side side plate portion 30 has a single-layer structure rather than a laminated structure in which a plurality of plates are laminated. That is, the one-sided side plate portion 30 of the present embodiment is composed of the one-sided first plate 301, and corresponds to the one-sided second plate 302 and the one-sided third plate 303 (see FIG. 2) of the first embodiment. Does not have.

The inlet pipe 34 is inserted into a lower through hole 30b formed in the lower part of the one side side plate portion 30, and is brazed to the one side side plate portion 30 at the lower through hole 30b. As a result, the inlet pipe 34 is connected to the condensing portion 20 so as to communicate with the condensing portion 20.

Further, the outlet pipe 36 is inserted into the upper through hole 30c formed in the upper part of the one side side plate portion 30, and is brazed to the one side side plate portion 30 at the upper through hole 30c. .. As a result, the outlet pipe 36 is connected to the evaporation unit 22 so as to communicate with the evaporation unit 22.

As shown in FIGS. 15 and 17, the other side plate portion 32 has the other side first plate 321 and the other side second plate 322, and the other side first plate 321 and the other side second plate thereof. It is configured by laminating 322 and joining to each other.

The first plate 321 on the other side has a diaphragm portion 321e as in the first embodiment. In addition, the first plate 321 on the other side is formed with a condensing portion outlet hole 321h which is a through hole provided in the lower part of the first plate 321 on the other side. The condensing portion outlet hole 321h communicates with the condensing portion outlet 202a.

The second plate 322 on the other side has a groove portion 322a that is recessed from one side of the stacking direction Ds to the other side and extends in the vertical direction Dg. The other side second plate 322 is brazed to the other side of the stacking direction Ds with respect to the other side first plate 321 so that the groove portion 322a of the other side second plate 322 is joined to the other side first plate 321. A side relay flow path 322b is formed between the two.

This side relay flow path 322b extends in the vertical direction Dg, and is provided between the condensing portion outlet hole 321h and the throttle hole 321d of the other side first plate 321 in the refrigerant flow. That is, the side relay flow path 322b is a flow path that connects the condensing portion outlet 202a of the condensing portion 20 and the throttle hole 321d. Due to such a flow path configuration of the refrigerant, the throttle portion 321e of the other side plate portion 32 is provided between the condensing portion outlet 202a and the evaporation portion inlet 222a in the refrigerant flow.

As shown in FIG. 15, in the present embodiment as in the first embodiment, one condensing component 201 and one evaporation component 221 arranged in the vertical direction Dg have a pair of

plate members

381 and 382 in the stacking direction. It is configured by being laminated on Ds and joined to each other. Then, of the pair of

plate members

381 and 382, the first plate member 381 is arranged on one side of the stacking direction Ds with respect to the second plate member 382.

However, in the present embodiment, as shown in FIGS. 18 and 19, one side condensing tank space 201a is arranged below the condensation flow path 201c in the vertical direction Dg, and the other side condensing tank space 201b is the condensing flow path 201c. It is arranged above the vertical Dg. Further, the one-side evaporation tank space 221a is arranged below the evaporation flow path 221c in the vertical direction Dg, and the other side evaporation tank space 221b is arranged above the evaporation flow path 221c in the vertical direction Dg.

Further, in the first plate member 381, in order to prevent heat transfer between the refrigerant in the condensation component 201 and the refrigerant in the evaporation component 221,

heat insulating holes

381a, 381b, 381c which are a plurality of through holes are provided. Is formed. Similarly, the second plate member 382 is also formed with a plurality of through

holes

382a, 382b, and 382c for heat insulation.

As shown in FIG. 15, the condensing unit 20 of the present embodiment includes a first condensed component group 204a, a second condensed component group 204b, a third condensed component group 204c, and a fourth condensed component group 204d. doing. The first condensed component group 204a, the second condensed component group 204b, the third condensed component group 204c, and the fourth condensed component group 204d are arranged from one side to the other side in the stacking direction Ds in the order of description. Have been placed. Then, in the refrigerant flow of the condensing unit 20, the first condensed component group 204a, the second condensed component group 204b, the third condensed component group 204c, and the fourth condensed component group 204d are on the upstream side in the order of description. It is connected in series from to the downstream side.

Further, in each of the plurality of condensing components groups 204a to 204d, a plurality of condensing flow paths 201c are connected in parallel in the refrigerant flow.

In order to realize such a flow path of the refrigerant, as shown in the C4 portion of FIG. 15, the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the first condensing component group 204a Is not provided with the first communication hole 201o. Further, as shown in the C5 portion, the second communication hole 201p is not provided in the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the second condensing component group 204b. Further, as shown in the C6 portion, the first communication hole 201o is not provided in the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the third condensing component group 204c.

For example, the condensing plate portion 201h on the other side, which is provided with the second communication hole 201p but is not provided with the first communication hole 201o, is shown in FIG. Further, the condensing plate portion 201h on the other side, which is provided with the first communication hole 201o but is not provided with the second communication hole 201p, is shown in FIG.

As shown in FIG. 15, in the present embodiment, the plurality of evaporation constituent groups 224a to 224d included in the evaporation portion 22 are the first evaporation constituent group 224a, the second evaporation constituent group 224b, and the third evaporation constituent group. Group 224c and fourth evaporation component group 224d are configured.

In the evaporation unit 22 of the present embodiment, the first evaporation component group 224a, the second evaporation component group 224b, the third evaporation component group 224c, and the fourth evaporation component group 224d are in the stacking direction Ds in the order of description. They are arranged side by side from the other side to one side. Then, in the refrigerant flow of the evaporation unit 22, the first evaporation component group 224a, the second evaporation component group 224b, the third evaporation component group 224c, and the fourth evaporation component group 224d are on the upstream side in the order of description. It is connected in series from to the downstream side.

Further, in each of the plurality of evaporation components groups 224a to 224d, a plurality of evaporation channels 221c are connected in parallel in the refrigerant flow.

In order to realize such a flow path of the refrigerant, as shown in the E4 part of FIG. 15, the other side evaporation plate part 221h located at the other end of the stacking direction Ds in the second evaporation component group 224b Is not provided with a second communication hole 221p. Further, as shown in the E5 portion, the first communication hole 221o is not provided in the other side evaporation plate portion 221h located at the other end of the stacking direction Ds in the third evaporation component group 224c. Further, as shown in the E6 portion, the second communication hole 221p is not provided in the other side evaporation plate portion 221h located at the other end of the stacking direction Ds in the fourth evaporation component group 224d.

For example, the other side evaporation plate portion 221h in which the first communication hole 221o is provided but the second communication hole 221p is not provided is shown in FIG. Further, the other side evaporation plate portion 221h in which the second communication hole 221p is provided but the first communication hole 221o is not provided is shown in FIG.

In the heat exchanger 10 and the refrigeration cycle circuit 12 of the present embodiment, the refrigerant flows as follows. The broken line arrow shown in FIG. 15 indicates the refrigerant flow in the heat exchanger 10.

First, as shown in FIGS. 14 and 15, the refrigerant discharged from the compressor 14 passes through the inlet pipe 34 to a plurality of one-sided condensing tank spaces 201a among the first condensing component group 204a of the condensing unit 20. Flow into the upstream space where is connected. The refrigerant that has flowed into the upstream space of the first condensed component group 204a is distributed to the plurality of condensed flow paths 201c while flowing to the other side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of condensing tank spaces 201b on the other side are connected. Further, the refrigerant flows from the downstream space of the first condensing component group 204a into the upstream space in which a plurality of other side condensing tank spaces 201b of the second condensing component group 204b are connected. The refrigerant that has flowed into the upstream space of the second condensed component group 204b is distributed to the plurality of condensed flow paths 201c while flowing to the other side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of one-sided condensing tank spaces 201a are connected. Further, the refrigerant flows from the downstream space of the second condensed component group 204b into the upstream space in which a plurality of one-sided condensed tank spaces 201a of the third condensed component group 204c are connected. The refrigerant that has flowed into the upstream space of the third condensed component group 204c is distributed to the plurality of condensed flow paths 201c while flowing to the other side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of condensing tank spaces 201b on the other side are connected. Further, the refrigerant flows from the downstream side space of the third condensed component group 204c into the upstream space in which a plurality of other side condensed tank spaces 201b of the fourth condensed component group 204d are connected. The refrigerant that has flowed into the upstream space of the fourth condensed component group 204d is distributed to the plurality of condensed flow paths 201c while flowing to the other side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of condensing flow paths 201c flows in parallel with each other, exchanges heat with the air around the condensing component 201, and dissipates heat to the air.

Then, the refrigerant flows from the plurality of condensing flow paths 201c into the downstream space in which the plurality of one-sided condensing tank spaces 201a are connected. The refrigerant that has flowed into the space on the downstream side of the fourth condensing component group 204d flows into the side relay flow path 322b from the condensing portion outlet 202a through the condensing portion outlet hole 321h of the other side plate portion 32.

In the side relay flow path 322b, the refrigerant flows from the lower side to the upper side in the vertical direction Dg, and the refrigerant flows from the side relay flow path 322b into the evaporation section 22 through the throttle hole 321d of the throttle section 321e. At this time, the refrigerant is depressurized by passing through the throttle hole 321d.

The refrigerant that has passed through the throttle hole 321d of the throttle section 321e flows into the evaporation section 22 from the evaporation section inlet 222a. The refrigerant flowing into the evaporation section 22 from the evaporation section inlet 222a first flows into the upstream space in which the plurality of other side evaporation tank spaces 221b of the first evaporation component group 224a are connected. The refrigerant that has flowed into the upstream space of the first evaporation component group 224a is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of one-side evaporation tank spaces 221a are connected. Further, the refrigerant flows from the downstream space of the first evaporation component group 224a into the upstream space in which a plurality of one-side evaporation tank spaces 221a of the second evaporation component group 224b are connected. The refrigerant that has flowed into the upstream space of the second evaporation component group 224b is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of other side evaporation tank spaces 221b are connected. Further, the refrigerant flows from the downstream space of the second evaporation component group 224b into the upstream space in which a plurality of other side evaporation tank spaces 221b of the third evaporation component group 224c are connected. The refrigerant that has flowed into the upstream space of the third evaporation component group 224c is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of one-side evaporation tank spaces 221a are connected. Further, the refrigerant flows from the downstream space of the third evaporation component group 224c into the upstream space in which a plurality of one-side evaporation tank spaces 221a of the fourth evaporation component group 224d are connected. The refrigerant that has flowed into the upstream space of the fourth evaporation component group 224d is distributed to the plurality of evaporation channels 221c while flowing to one side of the stacking direction Ds in the upstream space. The refrigerant flowing in the plurality of evaporation channels 221c flows in parallel with each other, exchanges heat with the air around the evaporation component 221 and absorbs heat from the air.

Then, the refrigerant flows from the plurality of evaporation channels 221c into the downstream space in which the plurality of other side evaporation tank spaces 221b are connected. The refrigerant that has flowed into the space on the downstream side of the fourth evaporation component group 224d flows out from the outlet pipe 36 to the outside of the heat exchanger 10. The refrigerant flowing out of the outlet pipe 36 flows into the gas-liquid separator 40 as shown in FIG. 14, and is sucked into the compressor 14 from the gas-liquid separator 40. As described above, the refrigerant flows in the heat exchanger 10 and the refrigeration cycle circuit 12 of the present embodiment.

Except as described above, this embodiment is the same as the first embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned first embodiment can be obtained in the same manner as in the first embodiment.

(Third Embodiment)
Next, the third embodiment will be described. In this embodiment, the differences from the second embodiment described above will be mainly described.

As shown in FIG. 22, the heat exchanger 10 of the present embodiment does not have the throttle portion 321e (see FIG. 15). The refrigeration cycle circuit 12 of the present embodiment includes a decompression device 41 corresponding to the throttle portion 321e as a device different from the heat exchanger 10. In this respect, the present embodiment is different from the second embodiment.

Specifically, since the throttle portion 321e is not provided, the other side plate portion 32 has a single-layer structure rather than a laminated structure in which a plurality of plates are laminated. A condensing portion outflow pipe 323 is provided in the lower portion of the other side plate portion 32, and the condensing portion outflow pipe 323 is connected to the condensing portion outlet 202a. Further, an evaporation portion inflow pipe 324 is provided in the upper part of the other side plate portion 32, and the evaporation portion inflow pipe 324 is connected to the evaporation portion inlet 222a.

The decompression device 41 is a device having the same function as the throttle unit 321e of the second embodiment. The upstream side of the refrigerant flow of the decompression device 41 is connected to the condensing part outlet 202a via the condensing part outflow pipe 323, and the downstream side of the refrigerant flow of the decompression device 41 is connected to the evaporation part inlet 222a via the evaporating part inflow pipe 324. There is. Therefore, the decompression device 41 decompresses the refrigerant flowing out from the condensing unit 20, and causes the decompressed refrigerant to flow to the evaporation unit 22.

For example, the pressure reducing device 41 may be an orifice similar to the throttle portion 321e of the second embodiment, or may be an expansion valve having a variable throttle opening degree.

Except as described above, this embodiment is the same as the second embodiment. Then, in the present embodiment, the effect produced from the configuration common to the above-mentioned second embodiment can be obtained in the same manner as in the second embodiment.

(Fourth Embodiment)
Next, the fourth embodiment will be described. In this embodiment, the differences from the second embodiment described above will be mainly described.

As shown in FIGS. 23 to 25, in the present embodiment, one one-side condensing plate portion 201d and one one-side evaporation plate portion 221d are not configured as a single component, but are configured as separate components. ing. Further, one condensing plate portion 201h on the other side and one evaporation plate portion 221h on the other side are not configured as a single component, but are configured as separate components. Therefore, in the present embodiment, the first plate member 381 (see FIG. 15) is not configured, and the second plate member 382 is also not configured. In this respect, the present embodiment is different from the second embodiment.

As described above, the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d are configured as separate parts, and the other-side condensing plate portion 201h and the other-side evaporation plate portion 221h are also configured as separate parts. .. Therefore, the condensing portion 20 and the evaporating portion 22 are integrally formed by joining the one-side side plate portion 30 and the other-side side plate portion 32 on both sides of the condensing portion 20 and the evaporating portion 22.

The flow path of the refrigerant of this embodiment is the same as that of the second embodiment as shown by the broken line arrow in FIG. Therefore, basically, as shown in FIG. 24, the one-side condensing plate portion 201d is provided with the first communication hole 201m and the second communication hole 201n, and the one-side evaporation plate portion 221d is also provided with the first communication hole 201n. 221m and a second communication hole 221n are provided. Then, as shown in FIG. 25, the other side condensing plate portion 201h is also provided with the first communication hole 201o and the second communication hole 201p, and the other side evaporation plate portion 221h is also provided with the first communication hole 221o and the second communication hole 221o. A hole 221p is provided.

However, as shown in FIGS. 23 and 26, in the C4 portion of FIG. 23, the first condensing plate portion 201h located at the other end of the stacking direction Ds in the first condensing component group 204a has a first The communication hole 201o is not provided. Further, as shown in FIGS. 23 and 27, in the C5 portion of FIG. 23, the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the second condensing component group 204b has a second The communication hole 201p is not provided. Further, as shown in FIGS. 23 and 26, in the C6 portion of FIG. 23, the other side condensing plate portion 201h located at the other end of the stacking direction Ds in the third condensing component group 204c has a first The communication hole 201o is not provided.

Further, as shown in FIGS. 23 and 26, in the E4 portion of FIG. 23, the other side evaporation plate portion 221h located at the other end of the stacking direction Ds in the second evaporation component group 224b has a second The communication hole 221p is not provided. Further, as shown in FIGS. 23 and 27, in the E5 part of FIG. 23, the other side evaporation plate part 221h located at the other end of the stacking direction Ds in the third evaporation component group 224c has a first The communication hole 221o is not provided. Further, as shown in FIGS. 23 and 26, in the E6 portion of FIG. 23, the other side evaporation plate portion 221h located at the other end of the stacking direction Ds in the fourth evaporation component group 224d has a second The communication hole 221p is not provided.

Further, as can be seen from FIGS. 24 to 27, not only between the plurality of one-side condensing plate portions 201d and between the plurality of one-side evaporating plate portions 221d, but also between the one-side condensing plate portion 201d and the one-side evaporating plate portion 201d. Parts are shared with each other with the unit 221d. Similarly, not only between the plurality of other side condensing plate portions 201h and between the plurality of other side evaporative plate portions 221h, but also between the other side condensing plate portion 201h and the other side evaporative plate portion 221h. Parts are standardized.

(Fifth Embodiment)
Next, the fifth embodiment will be described. In this embodiment, the differences from the second embodiment described above will be mainly described.

As shown in FIG. 28, in the present embodiment, the first plate member 381 and the second plate member 382 are joined to each other to form one of the plurality of condensation components 201 and one of the plurality of evaporation components 221. Consists of a plate member joint 39 including. Then, in each of the plurality of plate member joints 39, the first plate member 381 is arranged on one side of the stacking direction Ds with respect to the second plate member 382. In this respect, the present embodiment is similar to the second embodiment.

However, as shown in FIGS. 28 to 30, unlike the second embodiment, the plate member joint 39 is formed with the first intermediate through hole 39a and the second intermediate through hole 39b in the present embodiment. .. The first intermediate through hole 39a and the second intermediate through hole 39b are arranged between the condensation component 201 and the evaporation component 221 included in the plate member joint 39, and the plate member joint 39 is joined to the plate member. It penetrates in the thickness direction of the body 39 (that is, the stacking direction Ds). Since FIG. 28 is a diagram for showing reference numerals that could not be shown in FIG. 15, the illustrated shape of the heat exchanger 10 shown in FIG. 28 is the heat exchanger 10 shown in FIG. It is the same as the illustrated shape.

Focusing on the first plate member 381 of the plate member joints 39, the first plate member 381 has the first intermediate plate member 381, which is a portion of the first intermediate through hole 39a belonging to the first plate member 381. Hole 381d is formed. Further, the first plate member 381 is also formed with a first plate member second intermediate hole 381e, which is a portion of the second intermediate through hole 39b belonging to the first plate member 381.

Similarly, focusing on the second plate member 382, the second plate member 382 has a second plate member first intermediate hole 382d, which is a portion of the first intermediate through hole 39a belonging to the second plate member 382. It is formed. Further, the second plate member 382 is also formed with a second plate member second intermediate hole 382e, which is a portion of the second intermediate through hole 39b belonging to the second plate member 382.

In other words, the first intermediate hole 381d of the first plate member and the first intermediate hole 382d of the second plate member have the same size, and are connected in series in the stacking direction Ds to form the first intermediate through hole 39a. doing. The second intermediate hole 381e of the first plate member and the second intermediate hole 382e of the second plate member have the same size as each other, and are connected in series in the stacking direction Ds to form the second intermediate through hole 39b. There is.

The first intermediate hole 381d of the first plate member and the second intermediate hole 381e of the first plate member of the present embodiment are holes provided in place of the

heat insulating holes

381a, 381b, 381c (see FIG. 18) of the second embodiment. Is. Therefore, in the present embodiment, the

heat insulating holes

381a, 381b, and 381c are not provided. Further, the first intermediate hole 382d of the second plate member and the second intermediate hole 382e of the second plate member of the present embodiment are provided in place of the

heat insulating holes

382a, 382b, 382c (see FIG. 19) of the second embodiment. It is a hole. Therefore, in the present embodiment, the

heat insulating holes

382a, 382b, and 382c are not provided.

The first intermediate through hole 39a and the second intermediate through hole 39b of the present embodiment are the refrigerant in the condensation component 201 and the refrigerant in the evaporation component 221 as in the

heat insulating holes

381a and 382a of the second embodiment. It is provided for the purpose of heat insulation that hinders heat transfer between and.

Specifically, the first intermediate through hole 39a and the second intermediate through hole 39b of the present embodiment extend in the heat exchanger width direction Dw, respectively, as shown in FIGS. 29 and 30. For example, the first intermediate through hole 39a and the second intermediate through hole 39b are slit-shaped slit holes elongated in the heat exchanger width direction Dw, respectively. Then, the first intermediate through hole 39a partially overlaps the second intermediate through hole 39b on one side of the component arrangement direction Dh, which is the arrangement direction of the condensation component 201 and the evaporation component 221. Have been placed.

In the present embodiment, the heat exchanger width direction Dw is also the joint width direction, which is the width direction of the plate member joint 39, and the direction intersecting the component arrangement direction Dh (strictly speaking, the component arrangement direction). The direction orthogonal to Dh). Further, the component arrangement direction Dh does not have to coincide with the vertical direction Dg, but in the present embodiment, it coincides with the vertical direction Dg. Further, one side of the component arrangement direction Dh is the lower side of the vertical direction Dg in the present embodiment.

As described above, according to the present embodiment, the first intermediate through hole 39a and the second intermediate through hole 39b each extend in the heat exchanger width direction Dw. Then, the first intermediate through hole 39a partially overlaps the second intermediate through hole 39b on one side of the component arrangement direction Dh, which is the arrangement direction of the condensation component 201 and the evaporation component 221. Have been placed. Therefore, as compared with the case where the first and second intermediate through

holes

39a and 39b are not provided in the plate member joint 39, the plate is between the refrigerant in the condensation component 201 and the refrigerant in the evaporation component 221. It is possible to extend the heat transfer path PH in which heat is transferred through the member joint 39.

As a result, the heat transfer loss when heat is exchanged between the refrigerant in the condensing component 201 and the endothermic medium (specifically, the air around the condensing component 201) that absorbs heat from the refrigerant in the condensing unit 20 is reduced. can do. At the same time, the heat transfer loss during heat exchange between the refrigerant in the evaporation component 221 and the heat radiating medium (specifically, the air around the evaporation component 221) that dissipates heat to the refrigerant in the evaporation unit 22 is reduced. can do.

Although this embodiment is a modified example based on the second embodiment, it is also possible to combine this embodiment with the above-mentioned first embodiment or third embodiment.

(Sixth Embodiment)
Next, the sixth embodiment will be described. In this embodiment, the points different from the above-described fifth embodiment will be mainly described.

As shown in FIGS. 31 and 32, in the present embodiment, in addition to the first intermediate through hole 39a and the second intermediate through hole 39b, a third intermediate through hole 39c is also formed in the plate member joint 39. There is. Therefore, in the first plate member 381, in addition to the first plate member first intermediate hole 381d and the first plate member second intermediate hole 381e, the portion of the third intermediate through hole 39c belonging to the first plate member 381. The third intermediate hole 381f of the first plate member is also formed. Further, in the second plate member 382, in addition to the second plate member first intermediate hole 382d and the second plate member second intermediate hole 382e, a portion of the third intermediate through hole 39c belonging to the second plate member 382. The third intermediate hole 382f of the second plate member is also formed. In these respects, the present embodiment is different from the fifth embodiment.

Specifically, the third intermediate through hole 39c of the present embodiment extends in the heat exchanger width direction Dw. The third intermediate through hole 39c is arranged between the first intermediate through hole 39a and the second intermediate through hole 39b in the component arrangement direction Dh.

Except as described above, this embodiment is the same as the fifth embodiment. Then, in the present embodiment, the effect produced from the configuration common to the above-mentioned fifth embodiment can be obtained in the same manner as in the fifth embodiment.

(7th Embodiment)
Next, the seventh embodiment will be described. In this embodiment, the points different from the above-described fifth embodiment will be mainly described.

As shown in FIGS. 33 to 35, the first plate member 381 of the present embodiment has a first hole peripheral plate portion 381h and a second hole peripheral plate portion 381i provided at different positions from each other. The second plate member 382 of the present embodiment also has a first hole peripheral plate portion 382h and a second hole peripheral plate portion 382i provided at different locations from each other. In this respect, the present embodiment is different from the fifth embodiment.

Specifically, the first hole peripheral plate portion 381h of the first plate member 381 has a shape bent from the peripheral portion 381j of the first intermediate hole 381d of the first plate member to one side of the stacking direction Ds. .. The second hole peripheral plate portion 381i of the first plate member 381 has a shape bent from the peripheral portion 381k of the first plate member second intermediate hole 381e toward one side of the stacking direction Ds. In other words, as can be seen from FIG. 35, the plate member joint 39 is formed by joining the first plate member 381 to the first plate member 381 in the stacking direction Ds. It can be said that the side is opposite to the side of the second plate member 382 that constitutes the second plate member.

The first hole peripheral plate portion 381h of the first plate member 381 extends in the heat exchanger width direction Dw along the peripheral portion 381j of the first plate member first intermediate hole 381d. Similarly, the second hole peripheral plate portion 381i of the first plate member 381 extends in the heat exchanger width direction Dw along the peripheral edge portion 381k of the first plate member second intermediate hole 381e.

The first hole peripheral plate portion 381h of the first plate member 381 is arranged so as to partially overlap with the second hole peripheral plate portion 381i of the first plate member 381 on one side of the component arrangement direction Dh. ing.

The second plate member 382 has a shape symmetrical to the stacking direction Ds in the plate member joint 39 with respect to the first plate member 381 configured in this way. That is, the first hole peripheral plate portion 382h of the second plate member 382 has a shape bent from the peripheral portion 382j of the first intermediate hole 382d of the second plate member to the other side in the stacking direction Ds. The second hole peripheral plate portion 382i of the second plate member 382 has a shape bent from the peripheral portion 382k of the second plate member second intermediate hole 382e to the other side in the stacking direction Ds. In other words, as can be seen from FIG. 35, the plate member joint 39 is formed by joining the second plate member 382 with the second plate member 382 in the stacking direction Ds. It can be said that the side is opposite to the side of the constituent first plate member 381.

The first hole peripheral plate portion 382h of the second plate member 382 extends in the heat exchanger width direction Dw along the peripheral edge portion 382j of the second plate member first intermediate hole 382d. Similarly, the second hole peripheral plate portion 382i of the second plate member 382 extends in the heat exchanger width direction Dw along the peripheral edge portion 382k of the second plate member second intermediate hole 382e.

Then, the first hole peripheral plate portion 382h of the second plate member 382 is arranged so as to partially overlap one side of the constituent portion arranging direction Dh with respect to the second hole peripheral plate portion 382i of the second plate member 382. ing.

As described above, according to the present embodiment, the first hole peripheral plate portion 381h of the first plate member 381 is bent from the peripheral portion 381j of the first plate member first intermediate hole 381d to one side of the stacking direction Ds. It has a shaped shape. Similarly, the second hole peripheral plate portion 381i of the first plate member 381 has a shape bent from the peripheral portion 381k of the first plate member second intermediate hole 381e to one side of the stacking direction Ds. There is. The first and second hole peripheral plate portions 381h and 381i of the first plate member 381 extend in the heat exchanger width direction Dw, respectively.

Therefore, it is possible to increase the strength of the first plate member 381 alone and the strength of the plate member joint 39 by the first and second hole peripheral plate portions 381h and 381i. Then, as the intermediate through

holes

39a and 39b for reducing the heat transfer loss when heat is exchanged between the refrigerant and the air which is the endothermic medium or the heat dissipation medium are formed, the first and for increasing the strength thereof are formed. The second hole peripheral plate portions 381h and 381i can also be formed together.

Further, according to the present embodiment, the first hole peripheral plate portion 381h of the first plate member 381 is partially on one side of the component arrangement direction Dh with respect to the second hole peripheral plate portion 381i of the first plate member 381. It is arranged so as to overlap with. Therefore, it is possible to increase the strength of the first plate member 381 and the strength of the plate member joint 39 over a wide range in the heat exchanger width direction Dw by the two hole peripheral plate portions 381h and 381i. is there. Further, since the second plate member 382 is also provided with the first and second hole

peripheral plate portions

382h and 382i, the effect of increasing the strength as described above is further increased.

Further, as shown in FIG. 36, the first hole peripheral plate portion 381h of the first plate member 381 guides the air flow passing around the condensation component 201 as shown by the arrow FB along the heat exchanger width direction Dw. The same applies to the first hole peripheral plate portion 382h of the second plate member 382. Therefore, the air flow that tends to deviate from the air flow of the arrow FB to the other side of the component arrangement direction Dh as shown by the arrow FB can be suppressed by these first hole

peripheral plate portions

381h and 382h. In short, it is possible to reduce air leakage from each other of the plurality of condensed components 201.

Further, as shown in FIGS. 33 to 35, in the manufacturing process of the heat exchanger 10, in the first hole peripheral plate portion 381h of the first plate member 381, the condensing portion fins 203 before brazing and joining are arranged in the direction in which the constituent portions are arranged. It plays a role of preventing the Dh from shifting to the other side. The same applies to the first hole peripheral plate portion 382h of the second plate member 382. That is, in the manufacturing process of the heat exchanger 10, the first hole

peripheral plate portions

381h and 382h can function as fin stoppers for positioning the condensing portion fins 203 before brazing and joining.

The effect of the first hole

peripheral plate portions

381h and 382h in the condensing portion 20 is similarly exerted by the second hole peripheral plate portions 381i and 382i in the evaporation portion 22. That is, as shown in FIG. 36, the second hole peripheral plate portion 381i of the first plate member 381 guides the air flow passing around the evaporation component portion 221 as shown by the arrow FC along the heat exchanger width direction Dw. The same applies to the second hole peripheral plate portion 382i of the second plate member 382. Therefore, the air flow that tends to deviate from the air flow of the arrow FC to one side of the component arrangement direction Dh as shown by the arrow FCa can be suppressed by these second hole peripheral plate portions 381i and 382i. In short, it is possible to reduce wind leakage from each other of the plurality of evaporation components 221.

In this way, the hole

peripheral plate portions

381h, 381i, 382h, and 382i of the

plate members

381 and 382 are formed between the condensing portion 20 and the evaporation portion 22 along the

plate members

381 and 382 as shown by the arrow FD in FIG. It is possible to suppress the flow of air.

Further, as shown in FIGS. 33 to 35, in the manufacturing process of the heat exchanger 10, the second hole peripheral plate portion 381i of the first plate member 381 has the evaporation portion fins 223 before brazing and joining in the direction in which the constituent portions are arranged. It plays a role of preventing the Dh from shifting to one side. The same applies to the second hole peripheral plate portion 382i of the second plate member 382. That is, in the manufacturing process of the heat exchanger 10, the second hole peripheral plate portions 381i and 382i can function as fin stoppers for positioning the evaporation portion fins 223 before brazing and joining.

(8th Embodiment)
Next, the eighth embodiment will be described. In this embodiment, the points different from the above-described seventh embodiment will be mainly described.

In the seventh embodiment, two intermediate through

holes

39a and 39b are formed in the plate member joint 39, but in the present embodiment, as shown in FIGS. 37 and 38, two in the plate member joint 39 No one intermediate through hole 39a is formed.

Specifically, the intermediate through hole 39a of the present embodiment has a shape as if the two intermediate through

holes

39a and 39b of the seventh embodiment are connected to each other. For example, the intermediate through hole 39a of the present embodiment is formed in the plate member joint 39 so that the opening shape is bent at a plurality of places.

Further, since the plate member joint 39 has one intermediate through hole 39a, the first plate member intermediate hole 381d of the first plate member 381 is also one, and the second plate member intermediate hole 382d of the second plate member 382 is also one. There is one.

Further, the first and second hole peripheral plate portions 381h and 381i of the first plate member 381 each form a shape bent from the peripheral portion 381j of the first plate member intermediate hole 381d to one side in the stacking direction Ds. ing. Further, the first and second hole

peripheral plate portions

382h and 382i of the second plate member 382 each form a shape bent from the peripheral edge portion 382j of the second plate member intermediate hole 382d toward the other side in the stacking direction Ds. ing.

Except as described above, this embodiment is the same as the seventh embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned seventh embodiment can be obtained in the same manner as in the seventh embodiment.

(9th Embodiment)
Next, the ninth embodiment will be described. In this embodiment, the points different from the above-described seventh embodiment will be mainly described.

As shown in FIG. 39, in the present embodiment, the hole

peripheral plate portions

381h, 381i, 382h, and 382i are different from those in the seventh embodiment.

In this embodiment as well, as in the seventh embodiment, a plurality of plate member joints 39 are laminated and arranged in the stacking direction Ds, but in this embodiment, one of the plate member joints 39 adjacent to each other is laminated. It is referred to as "one plate member joint 39", and the other is referred to as "the other plate member joint 39". Further, one of the plate member joints 39 is arranged on one side of the stacking direction Ds with respect to the other plate member joint 39. This also applies to the following description of the embodiment.

Specifically, the first hole peripheral plate portion 382h of the second plate member 382 included in one plate member joint 39 is the first hole peripheral plate of the first plate member 381 included in the other plate member joint 39. It partially overlaps the other side of the component arrangement direction Dh with respect to the portion 381h. For example, the first hole peripheral plate portion 382h of the second plate member 382 is in contact with the first hole peripheral plate portion 381h of the first plate member 381.

The second hole peripheral plate portion 382i of the second plate member 382 included in one plate member joint 39 is the second hole peripheral plate portion 381i of the first plate member 381 included in the other plate member joint 39. On the other hand, it partially overlaps with one side of the component arrangement direction Dh. For example, the second hole peripheral plate portion 382i of the second plate member 382 is in contact with the second hole peripheral plate portion 381i of the first plate member 381.

As a result, the effect of suppressing air leakage through which air flows along the

plate members

381 and 382 as shown by the arrow FD (see FIG. 35) between the condensing portion 20 and the evaporating portion 22 is more effective than that of the seventh embodiment. It can be further enhanced.

Further, before brazing and joining in the manufacturing process of the heat exchanger 10, the second plate member 382 included in one plate member joint 39 becomes the first plate member 381 included in the other plate member joint 39. On the other hand, it is possible to prevent the position from being displaced in the component arrangement direction Dh.

Although this embodiment is a modified example based on the seventh embodiment, it is also possible to combine this embodiment with the eighth embodiment described above.

(10th Embodiment)
Next, the tenth embodiment will be described. In this embodiment, the points different from the above-described fifth embodiment will be mainly described.

As shown in FIGS. 40 to 42, in the present embodiment, as in the eighth embodiment, one intermediate through hole 39a is formed instead of two in the plate member joint 39. Further, the first plate member 381 has a first plate member main body 383 and two first outer

edge plate portions

381m and 381n. Further, the second plate member 382 has a second plate member main body 384 and two second outer

edge plate portions

382m and 382n. In these respects, the present embodiment is different from the fifth embodiment.

Here, the first plate member main body 383 of the present embodiment includes the one-side condensing plate portion 201d and the one-side evaporation plate portion 221d constituting the first plate member 381, and heat exchanges with the component arrangement direction Dh. It extends in the width direction Dw. Therefore, the first plate member main body 383 of the present embodiment corresponds to the first plate member 381 of the fifth embodiment in the fifth embodiment.

Further, the second plate member main body 384 of the present embodiment includes the other side condensing plate portion 201h and the other side evaporation plate portion 221h constituting the second plate member 382, and includes the constituent portion arranging direction Dh and the heat exchanger. It extends in the width direction Dw. Therefore, the second plate member main body 384 of the present embodiment corresponds to the second plate member 382 of the fifth embodiment in the fifth embodiment.

Note that FIG. 40A shows a state before the two first outer

edge plate portions

381m and 381n are bent with respect to the first plate member main body 383 in the manufacturing process of the first plate member 381, and is shown in FIG. 40. (B) shows a single unit of the completed first plate member 381. Similarly, FIG. 41A shows a state before the two second outer

edge plate portions

382m and 381n are bent with respect to the second plate member main body 384 in the manufacturing process of the second plate member 382. FIG. 41 (b) shows a single unit of the completed second plate member 382.

Specifically, in the present embodiment, as shown in FIG. 40B and FIG. 43, the two first outer

edge plate portions

381m and 381n of the first plate member 381 are the outer edge portions of the first plate member main body 383, respectively. It has a shape that rises from 383a to one side of the stacking direction Ds.

Specifically, one of the two first outer

edge plate portions

381m and 381n, one side first outer edge plate portion 381m, is provided on one side of the first plate member main body 383 in the heat exchanger width direction Dw. ing. On the other hand, the other side first outer edge plate portion 381n of the two first outer

edge plate portions

381m and 381n is provided on the other side of the first plate member main body 383 in the heat exchanger width direction Dw. There is.

The first outer edge plate portion 381m on one side and the first outer edge plate portion 381n on the other side are bent from the outer edge portion 383a of the first plate member main body 383 to one side in the stacking direction Ds at different locations. It has become. In FIG. 40A, the alternate long and short dash line LA1 shows the bent portion where the first outer edge plate portion 381 m on one side bends when bent from the outer edge portion 383a of the first plate member main body 383. Further, the bent portion that bends when the other side first outer edge plate portion 381n is bent from the outer edge portion 383a of the first plate member main body 383 is indicated by the alternate long and short dash line LA2.

As shown in FIG. 41B and FIG. 43, the two second outer

edge plate portions

382m and 382n of the second plate member 382 are located on the other side of the stacking direction Ds from the outer edge portion 384a of the second plate member main body 384, respectively. It has a rising shape.

Specifically, one of the two second outer

edge plate portions

382m and 382n, one side second outer edge plate portion 382m, is provided on one side of the second plate member main body 384 in the heat exchanger width direction Dw. ing. On the other hand, the other side second outer edge plate portion 382n of the two second outer

edge plate portions

382m and 382n is provided on the other side of the second plate member main body 384 in the heat exchanger width direction Dw. There is.

The second outer edge plate portion 382 m on one side and the second outer edge plate portion 382n on the other side are bent from the outer edge portion 384a of the second plate member main body 384 to the other side in the stacking direction Ds at different locations. It has become. In FIG. 41 (a), the bent portion that bends when the second outer edge plate portion 382 m on one side is bent from the outer edge portion 384a of the second plate member main body 384 is indicated by the alternate long and short dash line LB1. Further, the bent portion that bends when the other side second outer edge plate portion 382n is bent from the outer edge portion 384a of the second plate member main body 384 is indicated by the alternate long and short dash line LB2.

As shown in (b), FIG. 42, and FIG. 43 of FIG. 40, the intermediate through hole 39a is formed in the first plate member 381 from the first plate member main body 383 to one side first outer edge plate portion 381 m and the other side first outer edge. It extends so as to extend to each of the plate portions 381n. At the same time, as shown in FIGS. 41 (b), 42, and 43, the intermediate through hole 39a is formed in the second plate member 382 from the second plate member main body 384 to the second outer edge plate portion 382 m on one side and the other side. It extends so as to extend to each of the second outer edge plate portion 382n.

Therefore, as shown in (b) of FIG. 40 and (b) of FIG. 41, the intermediate through hole 39a is a main body composed of the first plate member main body 383 and the second plate member main body 384 of the plate member joints 39. The laminated portion 385 (see FIG. 43) extends over the entire width of the heat exchanger in the width direction Dw. The intermediate through hole 39a includes the main body laminated portion 385, one side first outer edge plate portion 381 m, the other side first outer edge plate portion 381 n, one side second outer edge plate portion 382 m, and the other side second outer edge plate portion 382 n. Penetrates. In short, the intermediate through hole 39a penetrates the plate member joint 39.

Due to such a shape, the intermediate through hole 39a separates the condensation component 201 from the evaporation component 221 in the first plate member body 383 and the second plate member body 384. In other words, the intermediate through hole 39a separates the condensation component 201 from the evaporation component 221 in the main body laminated portion 385.

Then, in the plate member joint 39, the condensation component 201 and the evaporation component 221 are: one side first outer edge plate portion 381 m, the other side first outer edge plate portion 381 n, one side second outer edge plate portion 382 m, and the other side second. They are connected to each other via the outer edge plate portion 382n.

As described above, according to the present embodiment, the intermediate through hole 39a extends from the first plate member main body 383 to each of the two first outer

edge plate portions

381m and 381n in the first plate member 381. .. At the same time, the intermediate through hole 39a extends from the second plate member main body 384 to the two second outer

edge plate portions

382m and 382n in the second plate member 382, respectively.

Therefore, a heat transfer path in which heat is transferred between the refrigerant in the condensation component 201 and the refrigerant in the evaporation component 221 via the plate member joint 39, that is, between the condensation component 201 and the evaporation component 221. The heat transfer path always passes through any one of the outer

edge plate portions

381m, 381n, 382m, and 382n. Therefore, it is possible to extend the heat transfer path as compared with the case where these outer

edge plate portions

381m, 381n, 382m, and 382n are not provided. Thereby, the heat transfer loss at the time of heat exchange in each of the condensing unit 20 and the evaporation unit 22 can be reduced.

Further, since the outer

edge plate portions

381m, 381n, 382m, and 382n all have the above-mentioned raised shape, the plate member joint 39 is hardly widened in the heat exchanger width direction Dw, and the heat exchanger 10 is used. Has little effect on the physique of.

Further, in the first plate member 381 before brazing and joining in the manufacturing process of the heat exchanger 10, that is, in the single first plate member 381, the two first outer

edge plate portions

381m and 381n have the following bending rigidity. Can be increased. That is, in the single first plate member 381, the flexural rigidity against bending that attempts to displace one end of the component alignment direction Dh in the thickness direction of the first plate member 381 with respect to the other end is increased. It is possible to do. This also applies to the second plate member 382.

Further, as shown in (b) of FIG. 40 and (b) of FIG. 41, the outer

edge plate portions

381m, 381n, 382m, and 382n of the plate member joint 39 are the condensed constituent portions 201 in the constituent portion arranging direction Dh, respectively. It is arranged at an intermediate position between the evaporation component 221 and the evaporation component 221. Therefore, as shown in FIG. 44, the outer edge plate has a function of separating the air flow passing around the condensation component 201 as shown by the arrow FB and the air flow passing around the evaporation component 221 as shown by the arrow FC. It is possible to have the

portions

381m, 381n, 382m, and 382n. For example, the air flow that tends to flow from the evaporation portion 22 side to the condensing portion 20 side as shown by the arrow FE can be suppressed by the other side first outer edge plate portion 381n and the other side second outer edge plate portion 382n.

In FIG. 44, a one-side partition plate 44 provided on one side of the heat exchanger width direction Dw with respect to the heat exchanger 10 and a one-side partition plate 44 provided on the other side of the heat exchanger width direction Dw with respect to the heat exchanger 10 are provided. The other side partition plate 45 is shown. The other side partition plate 45 separates the air flow toward the condensing portion 20 as shown by the arrow FB and the air flow toward the evaporation portion 22 as shown by the arrow FC on the upstream side of the air flow with respect to the heat exchanger 10. Further, the one-side partition plate 44 separates the air flow flowing out from the condensing portion 20 as shown by the arrow FB and the air flow flowing out from the evaporation portion 22 as shown by the arrow FC on the downstream side of the air flow with respect to the heat exchanger 10. Divide.

Further, according to the present embodiment, the first outer edge plate portion 381 m on one side and the first outer edge plate portion 381n on the other side are each bent up from the outer edge portion 383a of the first plate member main body 383. Therefore, for example, higher strength can be obtained as compared with the case where the first outer

edge plate portions

381m and 381n are brazed to the first plate member main body 383. This also applies to the second outer

edge plate portions

382m and 382n of the second plate member 382.

Further, according to the present embodiment, the intermediate through hole 39a is condensed in the main body laminated portion 385 (see FIG. 43) composed of the first plate member main body 383 and the second plate member main body 384 of the plate member joint 39. The component 201 is separated from the evaporation component 221. Then, in the plate member joint 39, the condensation component 201 and the evaporation component 221 are: one side first outer edge plate portion 381 m, the other side first outer edge plate portion 381 n, one side second outer edge plate portion 382 m, and the other side second. They are connected to each other via the outer edge plate portion 382n. Therefore, while the condensation component 201 and the evaporation component 221 are configured as an integral body, in the first plate member main body 383 and the second plate member main body 384, heat transfer between the condensation component 201 and the evaporation component 221 is performed. Can be greatly hindered.

(11th Embodiment)
Next, the eleventh embodiment will be described. In this embodiment, the differences from the above-described tenth embodiment will be mainly described.

As shown in FIG. 45, in the present embodiment, the first outer

edge plate portions

381m and 381n and the second outer

edge plate portions

382m and 382n are different from the tenth embodiment, respectively.

Specifically, the one-sided second outer edge plate portion 382m of the second plate member 382 included in one plate member joint 39 is the one-sided first of the first plate member 381 included in the other plate member joint 39. It partially overlaps the outer edge plate portion 381 m on one side of the heat exchanger width direction Dw. For example, the second outer edge plate portion 382 m on one side is in contact with the first outer edge plate portion 381 m on one side.

The second outer edge plate portion 382n on the other side of the second plate member 382 included in the one plate member joint 39 is the first outer edge plate on the other side of the first plate member 381 included in the other plate member joint 39. The portion 381n partially overlaps the other side of the heat exchanger width direction Dw. For example, the other side second outer edge plate portion 382n is in contact with the other side first outer edge plate portion 381n.

As a result, the function of separating the air flow passing around the condensation component 201 as shown by the arrow FB (see FIG. 44) and the air flow passing around the evaporation component 221 as shown by the arrow FC (see FIG. 44). Can be further increased as compared with the tenth embodiment.

Further, before brazing and joining in the manufacturing process of the heat exchanger 10, the second plate member 382 included in one plate member joint 39 becomes the first plate member 381 included in the other plate member joint 39. On the other hand, it is possible to prevent the position from shifting in the Dw in the width direction of the heat exchanger.

Except as described above, this embodiment is the same as the tenth embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-described tenth embodiment can be obtained in the same manner as in the tenth embodiment.

(Other embodiments)
(1) In the above-described first embodiment, as shown in FIGS. 1 and 2, the heat exchanger 10 includes a gas-liquid separation unit 26 as an accumulator, which is an example. For example, as shown in FIG. 46, the heat exchanger 10 may include a receiver 42 that functions as a gas-liquid separator instead of the gas-liquid separator 26.

As shown in FIG. 46, the receiver 42 is arranged between the outlet 202a of the condensing portion and the inner flow path 28b (see FIG. 2) of the internal heat exchange portion 28 in the refrigerant flow. Then, the receiver 42 stores the refrigerant (specifically, the gas-liquid two-phase refrigerant or the liquid single-phase refrigerant) that has flowed into the receiver 42 from the condensing unit 20, gas-liquid separation, and the gas-liquid separation is performed. The liquid refrigerant flows to the inner flow path 28b of the internal heat exchange section 28.

For example, the receiver 42 of FIG. 46 may be provided on the one-side side plate portion 30 by laminating a plurality of plates as in the gas-liquid separation portion 26 of FIG. 2, or may be laminated on the one-side side plate portion 30. It may be provided so as to be fixed to one side of the direction Ds.

(2) In the above-described first embodiment, as shown in FIG. 7, the outlet position condensing component 202 provided with the condensing outlet 202a is located at one end of the plurality of condensing components 201 in the stacking direction Ds. It is located, but this is just an example. Depending on the configuration of the refrigerant flow in the heat exchanger 10, the outlet position condensing component 202 may be located at the other end of the plurality of condensing components 201 in the stacking direction Ds. In short, the outlet position condensing component 202 may be located at the end of the array of the condensed components 201 among the plurality of condensed components 201.

(3) In the above-described first embodiment, as shown in FIG. 8, the inlet position evaporation component 222 provided with the evaporation unit inlet 222a is located at the other end of the plurality of evaporation components 221 on the other side in the stacking direction Ds. It is located, but this is just an example. Depending on the configuration of the refrigerant flow in the heat exchanger 10, the inlet position evaporation component 222 may be located at one end of the plurality of evaporation components 221 in the stacking direction Ds. In short, the inlet position evaporation component 222 may be located at the end of the array of the evaporation components 221 of the plurality of evaporation components 221.

(4) In the above-described first embodiment, as shown in FIGS. 2, 5 and 6, the one-side condensing plate portion 201d, the one-side evaporation plate portion 221d, and the first outer cylinder constituent portion 281a are one first. It constitutes a plate member 381. At the same time, the condensing plate portion 201h on the other side, the evaporation plate portion 221h on the other side, and the second outer cylinder constituent portion 281b constitute one second plate member 382. However, this is just one example. For example, the combination of the one-side condensing plate portion 201d, the one-side evaporation plate portion 221d, and the first outer cylinder constituent portion 281a, the other-side condensing plate portion 201h, the other side evaporation plate portion 221h, and the second outer cylinder configuration portion 281b. One of the combinations of the above may be a combination of a plurality of separately configured parts.

(5) In the above-described first embodiment, as shown in FIGS. 2 and 7, a pair of condensing

plate portions

201d and 201h are laminated in the stacking direction Ds in any of the plurality of condensing components 201. Is an example. For example, in a part of the plurality of condensed constituent parts 201 included in the condensed portion 20, the pair of

condensed plate portions

201d and 201h may not be laminated in the stacking direction Ds. In short, at least one of the plurality of condensed constituent parts 201 included in the condensed part 20 may have a pair of

condensed plate parts

201d and 201h.

(6) In the above-mentioned first embodiment, as shown in FIGS. 2 and 8, each of the plurality of evaporation components 221 has a pair of

evaporation plate portions

221d and 221h, which is an example. For example, in a part of the plurality of evaporation constituent parts 221 included in the evaporation portion 22, the pair of

evaporation plate portions

221d and 221h may not be laminated in the stacking direction Ds. In short, at least one of the plurality of evaporation constituent parts 221 included in the evaporation part 22 may have a pair of

evaporation plate parts

221d and 221h.

(7) In the above-described first embodiment, as shown in FIGS. 2, 5 and 6, the internal space of the condensing component 201 has a shape in which the condensing plate portion 201d on one side is recessed on one side in the stacking direction Ds. The other side condensing plate portion 201h is formed by a recessed shape toward the other side in the stacking direction Ds. However, this is just one example. For example, one of the one-side condensing plate portion 201d and the other-side condensing plate portion 201h may have a flat plate shape without having a recessed shape in the stacking direction Ds. This also applies to the shapes of the one-side evaporation plate portion 221d and the other-side evaporation plate portion 221h.

(8) In the second embodiment described above, as shown in FIGS. 15 and 17, the groove portion 322a of the second plate 322 on the other side does not have a function of throttled the refrigerant flow to reduce the pressure of the refrigerant, but this is an example. Is. For example, the groove portion 322a may be configured as a capillary for narrowing the flow of the refrigerant and may have a function of reducing the pressure of the refrigerant.

(9) In the above-described first embodiment, as shown in FIG. 2, the evaporation unit 22, the internal heat exchange unit 28, and the condensing unit 20 are arranged side by side in the vertical direction Dg from the upper side in the order of description. There is no limitation on the order and direction of their arrangement. For example, the evaporation unit 22, the internal heat exchange unit 28, and the condensation unit 20 may be arranged side by side in the horizontal direction, or the condensation unit 20 may be arranged above the evaporation unit 22 in the vertical direction Dg.

(10) In the first embodiment described above, as shown in FIG. 2, the heat exchanger 10 includes a gas-liquid separation unit 26, an internal heat exchange unit 28, and a throttle unit 321e in addition to the evaporation unit 22 and the condensing unit 20. This is an example. For example, it is conceivable that the heat exchanger 10 does not include all or any of the gas-liquid separation unit 26, the internal heat exchange unit 28, and the throttle unit 321e.

(11) In the second embodiment described above, as shown in FIGS. 18 and 19, the condensation flow path 201c and the evaporation flow path 221c have the same shape as each other, but this is an example. For example, as shown in FIG. 47, the condensation flow path 201c and the evaporation flow path 221c may have different shapes. This also applies to the fourth embodiment in which the condensing

plate portions

201d and 201h and the

evaporation plate portions

221d and 221h are configured as separate parts, as shown in FIG. 48, for example.

(12) In the second embodiment described above, as shown in FIGS. 18 and 19, one of the one-sided condensing tank space 201a and the other-side condensing tank space 201b is on the upper side of the vertical Dg with respect to the condensing flow path 201c. Have been placed. The other side of the condensing tank space 201a on one side and the condensing tank space 201b on the other side is arranged below the Dg in the vertical direction with respect to the condensing flow path 201c. However, this is just one example. For example, as shown in FIG. 49 or FIG. 50, both the one-sided condensing tank space 201a and the other-side condensing tank space 201b are biased to one of the upper side and the lower side of the vertical Dg with respect to the condensing flow path 201c. It doesn't matter if it is done. 49 and 50 show an example in which both the one-sided condensing tank space 201a and the other-side condensing tank space 201b are biased to the lower side of the vertical Dg with respect to the condensing flow path 201c.

This also applies to the configuration of the evaporation unit 22. That is, as shown in FIG. 49 or FIG. 50, both the one-side evaporation tank space 221a and the other-side evaporation tank space 221b are biased to one of the upper side and the lower side of the vertical direction Dg with respect to the evaporation flow path 221c. It does not matter if it is placed. 49 and 50 show an example in which both the one-side evaporation tank space 221a and the other-side evaporation tank space 221b are biased upward in the vertical direction Dg with respect to the evaporation flow path 221c.

Furthermore, the above is the same in the fourth embodiment in which the condensing

plate portions

201d and 201h and the

evaporation plate portions

221d and 221h are configured as separate parts, for example, as shown in FIGS. 51 and 52. is there.

(13) In the second embodiment described above, as shown in FIG. 14, the gas-liquid separator 40 as an accumulator is provided as a device different from the heat exchanger 10, but this is an example. For example, as shown in FIG. 53, the gas-liquid separator 40 may be configured as a part of the heat exchanger 10 and integrated with the condensing unit 20, the evaporation unit 22, and the drawing unit 321e.

(14) In the first embodiment described above, for example, as shown in FIGS. 2 and 8, the throttle portion 321e provided on the other side plate portion 32 is an orifice, which is an example. The drawing portion 321e may be a capillary, a capillary and an orifice connected to each other, or a block in which a drawing hole 321d is formed as shown in FIG. 54.

In the example of FIG. 54, the narrowing portion 321e is configured as a block-shaped member, is fitted into a hole formed in the first plate 321 on the other side, and is fixed to the first plate 321 on the other side.

(15) As shown in FIG. 35 in the above-described seventh embodiment, the first hole peripheral plate portion 381h of the first plate member 381 is located in the stacking direction Ds from the peripheral portion 381j of the first plate member first intermediate hole 381d. It has a shape that is bent to one side, which is an example. On the contrary, even if the first hole peripheral plate portion 381h of the first plate member 381 has a shape bent from the peripheral portion 381j of the first intermediate hole 381d of the first plate member to the other side in the stacking direction Ds. Good. In that case, in order to avoid the first hole peripheral plate portion 381h from interfering with the second plate member 382, for example, at a position where the first hole peripheral plate portion 381h is inserted into the first intermediate hole 382d of the second plate member, the stacking direction Ds It is bent to the other side. The same can be said for the second hole peripheral plate portions 381i of the first plate member 381 and the first and second hole

peripheral plate portions

382h and 382i of the second plate member 382.

(16) In the ninth embodiment described above, as shown in FIG. 39, the first hole peripheral plate portion 382h of the second plate member 382 is aligned with the first hole peripheral plate portion 381h of the first plate member 381. It overlaps the other side of the direction Dh, but for example, this overlapping method may be reversed. That is, the first hole peripheral plate portion 382h of the second plate member 382 included in one plate member joint 39 is the first hole peripheral plate portion 381h of the first plate member 381 included in the other plate member joint 39. On the other hand, it may partially overlap one side of the component arrangement direction Dh.

The same applies to how the second hole peripheral plate portion 382i of the second plate member 382 and the second hole peripheral plate portion 381i of the first plate member 381 overlap. That is, contrary to FIG. 39, the second hole peripheral plate portion 382i of the second plate member 382 included in one plate member joint 39 is the first plate member 381 included in the other plate member joint 39. It partially overlaps the second hole peripheral plate portion 381i on the other side of the component alignment direction Dh.

(17) In the tenth embodiment described above, as shown in (b) of FIG. 40 and (b) of FIG. 41, there is one intermediate through hole 39a formed in the plate member joint 39. Is an example. For example, as shown in FIGS. 29 and 30, the intermediate through hole 39a may be divided into a plurality of pieces and formed in the plate member joint 39.

(18) In the eleventh embodiment described above, as shown in FIG. 45, the one-sided second outer edge plate portion 382 m included in one plate member joint 39 is the one-side second included in the other plate member joint 39. 1 The outer edge plate portion 381 m overlaps with one side of the heat exchanger width direction Dw, which is an example. For example, this overlapping method may be reversed. That is, the one-sided second outer edge plate portion 382 m included in one plate member joint 39 is the other in the heat exchanger width direction Dw with respect to the one-side first outer edge plate portion 381 m included in the other plate member joint 39. It may overlap on the side.

The same applies to the way in which the second outer edge plate portion 382n on the other side of the second plate member 382 and the first outer edge plate portion 381n on the other side of the first plate member 381 overlap. That is, contrary to FIG. 45, the second outer edge plate portion 382n on the other side of the second plate member 382 included in one plate member joint 39 is the first plate member 381 included in the other plate member joint 39. It may overlap on one side of the heat exchanger width direction Dw with respect to the first outer edge plate portion 381n on the other side of the heat exchanger.

(19) In the above-mentioned seventh embodiment, as shown in FIG. 33, the first hole peripheral plate portion 381h of the first plate member 381 is provided in a part of the peripheral portion 381j of the first plate member first intermediate hole 381d. This is just an example. For example, the first hole peripheral plate portion 381h may be provided over the entire peripheral edge portion 381j of the first plate member first intermediate hole 381d. This also applies to the hole

peripheral plate portions

381i, 382h, and 382i other than the first hole peripheral plate portion 381h of the first plate member 381.

(20) The present disclosure is not limited to the above-described embodiment, and can be implemented in various modifications. Further, in each of the above embodiments, it goes without saying that the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential and when they are clearly considered to be essential in principle. No. Further, the above-described embodiments are not unrelated to each other, and can be appropriately combined unless the combination is clearly impossible.

Further, in each of the above embodiments, when numerical values such as the number, numerical values, amounts, and ranges of the constituent elements of the embodiment are mentioned, when it is clearly stated that they are particularly essential, and in principle, the number is clearly limited to a specific number. It is not limited to the specific number except when it is done. In addition, in each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the components, etc., except when specifically specified or when the material, shape, positional relationship, etc. are limited in principle. , The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the first aspect shown in a part or all of the above-described embodiments, the heat radiating portion includes a plurality of heat radiating components laminated on one side in the stacking direction with respect to the side plate portion and joined to each other. It has and dissipates heat from the refrigerant flowing in the heat dissipation flow path in the heat dissipation component. The evaporation unit has a plurality of evaporation components that are laminated on one side of the stacking direction with respect to the side plate portion and are joined to each other, and endothermic heat is absorbed by the refrigerant flowing in the evaporation flow path in the evaporation component to evaporate the refrigerant. Let me. The evaporation portion is arranged side by side with respect to the heat dissipation portion in the direction along the side plate portion, and the heat dissipation portion and the evaporation portion are fixed to the side plate portion, respectively. Outlet positions at the ends of the plurality of heat dissipation components The heat dissipation components are provided with heat dissipation unit outlets, and the inlet positions at the ends of the plurality of evaporation components are provided with evaporation unit inlets. Then, all the heat dissipation channels formed in the plurality of heat dissipation components are connected to the evaporation channel via the heat dissipation section outlet and the evaporation section inlet.

Further, according to the second viewpoint, the side plate portion has a pressure reducing portion provided between the outlet of the heat radiating portion and the inlet of the evaporation portion in the flow of the refrigerant to reduce the pressure of the refrigerant. Therefore, it is possible to suppress the expansion of the physique of the heat exchanger including the decompression unit. Then, for example, as compared with the heat exchanger in which a large number of flow path units of Patent Document 1 are laminated, the decompression unit can be easily configured.

Further, according to the third viewpoint, the stacking direction is a direction that intersects the vertical direction. Then, the heat radiating portion is arranged so as to overlap the evaporating portion on the lower side. Therefore, it is possible to improve the heat dissipation performance of the heat dissipation part due to the watering effect that the condensed water generated in the evaporation part is applied to the heat dissipation part by the action of gravity. Then, since the evaporation process of evaporating the condensed water generated in the evaporating part by the heat of the heat radiating part can be performed, it is possible to eliminate or reduce the drain water which is the discharged condensed water.

Further, according to the fourth viewpoint, at least one of the plurality of heat radiating components has a pair of plate-shaped heat radiating plate portions, and the pair of heat radiating plate portions are laminated in the stacking direction and the heat radiating flow. It is configured by joining the paths together so as to form between the pair of heat radiating plates. Therefore, the heat dissipation component can be made simple, and the pair of heat dissipation plates can be easily configured as the same component depending on the shape of the internal space of the heat dissipation component such as the shape of the heat dissipation flow path. There are merits.

Further, according to the fifth aspect, at least one of the plurality of evaporation components has a pair of plate-shaped evaporation plates, and the pair of evaporation plates are laminated in the stacking direction and the evaporation flow. It is configured by joining the paths together so as to form between the pair of evaporation plates. Therefore, the evaporation component can be made simple, and the pair of evaporation plates can be easily configured as the same component depending on the shape of the internal space of the evaporation component such as the shape of the evaporation channel. There are merits.

Further, according to the sixth viewpoint, at least one of the plurality of heat radiating components has a pair of plate-shaped heat radiating plate portions, and the pair of heat radiating plate portions are laminated in the stacking direction and the heat radiating flow. It is configured by joining the paths together so as to form between the pair of heat radiating plates. Then, at least one of the plurality of evaporation components has a pair of plate-shaped evaporation plates, the pair of evaporation plates are laminated in the stacking direction, and the evaporation flow path is formed of the pair of evaporation plates. It is constructed by joining each other so as to form between them. Further, one of the pair of heat radiating plate portions and one of the pair of evaporation plate portions constitute one plate member. Therefore, since the heat dissipation part and the evaporation part are supported by each other not only by the side plate part but also by the plate member, the heat exchanger is compared with the configuration in which the heat dissipation part and the evaporation part are connected to each other only by the side plate part. Can be made sturdy.

Further, according to the seventh viewpoint, the plate member is the first plate member. The other of the pair of heat radiating plate portions and the other of the pair of evaporation plate portions constitute one second plate member. The first plate member and the second plate member are joined to each other to form a plate member joint including one of the plurality of heat dissipation components and one of the plurality of evaporation components. In the plate member joint, a first intermediate through hole and a second intermediate through hole are formed which are arranged between the heat dissipation component and the evaporation component included in the plate member joint and penetrate the plate member joint. There is. The first intermediate through hole and the second intermediate through hole each extend in the width direction of the joint intersecting the alignment direction of the heat dissipation component and the evaporation component, and the first intermediate through hole is the second intermediate through hole. On the other hand, they are arranged so as to partially overlap on one side of the above-mentioned arrangement direction.

Therefore, as compared with the case where the plate member joints are not provided with these first and second intermediate through holes, the refrigerant in the heat dissipation component and the refrigerant in the evaporation component are interposed through the plate member joints. It is possible to extend the heat transfer path through which heat is transferred. As a result, heat transfer loss occurs when heat is exchanged between the refrigerant in the heat dissipation component and the endothermic medium that absorbs heat from the refrigerant in the heat dissipation section, and the heat dissipation medium that dissipates heat to the refrigerant in the evaporation component and the refrigerant in the evaporation section. It is possible to reduce the heat transfer loss when exchanging heat with and from.

Further, according to the eighth viewpoint, the plate member joint is formed with an intermediate through hole which is arranged between the heat dissipation component and the evaporation component included in the plate member joint and penetrates the plate member joint. Will be done. The first plate member is formed with the first plate member intermediate hole, which is a portion of the intermediate through hole belonging to the first plate member, and the first plate member is formed in the stacking direction from the peripheral portion of the first plate member intermediate hole. It has a hole peripheral plate portion having a bent shape. The hole peripheral plate portion extends in the width direction of the joint intersecting in the alignment direction of the heat dissipation component and the evaporation component. Therefore, it is possible to increase the strength of the first plate member alone and the strength of the plate member joint by the hole peripheral plate portion. Then, along with forming the intermediate through hole for reducing the heat transfer loss, it is possible to also form the hole peripheral plate portion for increasing the strength thereof.

Further, according to the ninth viewpoint, the first plate member has a first hole peripheral plate portion and a second hole peripheral plate portion provided at different positions as the hole peripheral plate portion. The first hole peripheral plate portion is arranged so as to partially overlap the second hole peripheral plate portion on one side in the alignment direction. Therefore, it is possible to increase the strength of the first plate member alone and the strength of the plate member joint over a wide range in the width direction of the joint by the two hole peripheral plate portions.

Further, according to the tenth viewpoint, the first plate member includes a first plate member main body including a heat radiating plate portion and an evaporation plate portion constituting the first plate member, and an outer edge portion of the first plate member main body. It has a first outer edge plate portion having a shape rising from the surface. The second plate member is a second plate member main body including a heat radiating plate portion and an evaporation plate portion constituting the second plate member, and a second outer edge plate having a shape rising from an outer edge portion of the second plate member main body. Has a part. The intermediate through hole extends from the first plate member main body to the first outer edge plate portion in the first plate member and extends from the second plate member main body to the second outer edge plate portion in the second plate member.

Therefore, the heat transfer path in which heat is transferred between the refrigerant in the heat dissipation component and the refrigerant in the evaporation component via the plate member joint, that is, the heat transfer path between the heat dissipation component and the evaporation component is the first. It will pass through the outer edge plate portion or the second outer edge plate portion. Therefore, it is possible to extend the heat transfer path as compared with the case where these first and second outer edge plate portions are not provided. As a result, it is possible to reduce heat transfer loss during heat exchange between the heat dissipation unit and the evaporation unit. Since both the first outer edge plate portion and the second outer edge plate portion have the above-mentioned raised shape, the plate member joint is hardly widened and has almost no effect on the physique of the heat exchanger 10. ..

Further, according to the eleventh viewpoint, the first outer edge plate portion is configured to be bent up from the outer edge portion of the first plate member main body. Therefore, for example, it is possible to obtain high strength as compared with the case where the first outer edge plate portion is brazed and joined to the first plate member main body.

Further, according to the twelfth viewpoint, the first plate member includes the first outer edge plate portion on one side provided on one side of the first plate member main body in the joint width direction and the first plate in the joint width direction. The other side first outer edge plate portion provided on the other side of the member main body is provided as the first outer edge plate portion. The second plate member includes a second outer edge plate portion on one side provided on one side of the second plate member main body in the joint width direction and the other side provided on the other side of the second plate member main body in the joint width direction. It has a side second outer edge plate portion as a second outer edge plate portion. The intermediate through hole extends from the main body of the first plate member to the first outer edge plate portion on one side and the first outer edge plate portion on the other side in the first plate member, and one side from the main body of the second plate member in the second plate member. It extends so as to extend to each of the second outer edge plate portion and the second outer edge plate portion on the other side. Further, the intermediate through hole separates the heat dissipation component from the evaporation component in the first plate member main body and the second plate member main body. Then, in the plate member joint, the heat dissipation component and the evaporation component are the first outer edge plate on one side, the first outer edge plate on the other side, the second outer edge plate on one side, and the second outer edge plate on the other side, respectively. It is connected via. Therefore, while the heat dissipation component and the evaporation component are configured as an integral body, the heat transfer between the heat dissipation component and the evaporation component can be greatly hindered in the first plate member body and the second plate member body. ..

Further, according to the thirteenth viewpoint, the outlet position heat dissipation component is a heat dissipation component located at one end or the other end in the stacking direction among the plurality of heat dissipation components. The inlet position evaporation component is an evaporation component located at one end or the other end in the stacking direction among the plurality of evaporation components. Therefore, as compared with the case where this is not the case, it is easy to provide a path for the refrigerant from the outlet of the heat dissipation unit to the inlet of the evaporation unit, so that it is easy to simplify the path of the refrigerant. For example, it is possible to provide a path for the refrigerant from the heat dissipation portion outlet to the evaporation portion inlet by using the side plate portion.

Claims

A heat exchanger through which refrigerant flows
A side plate portion (32) having a predetermined stacking direction (Ds) as a thickness direction, and
It has a plurality of heat dissipation components (201) that are laminated on one side of the stacking direction with respect to the side plate portion and are joined to each other to form a heat dissipation flow path (201c) inside, and flows through the heat dissipation flow path. A heat radiating unit (20) that dissipates heat from the refrigerant and
The side plate portion has a plurality of evaporation constituent portions (221) that are laminated on one side of the stacking direction and joined to each other to form an evaporation flow path (221c) inside. It is provided with an evaporation unit (22) which is arranged side by side with respect to the heat dissipation unit in the direction along the line and absorbs heat from the refrigerant flowing in the evaporation flow path to evaporate the refrigerant.
The heat dissipation part and the evaporation part are fixed to the side plate part, respectively.
The outlet position heat dissipation component (202) at the end of the plurality of heat dissipation components is provided with a heat dissipation component outlet (202a).
An inlet position at the end of the plurality of evaporation components The evaporation component (222) is provided with an evaporation unit inlet (222a).
A heat exchanger in which all the heat dissipation channels formed in the plurality of heat dissipation components are connected to the evaporation flow path via the heat dissipation section outlet and the evaporation section inlet.
The heat exchanger according to claim 1, wherein the side plate portion has a decompression unit (321e) provided between the heat dissipation unit outlet and the evaporation unit inlet to reduce the pressure of the refrigerant in the flow of the refrigerant.
The stacking direction is a direction that intersects the vertical direction (Dg).
The heat exchanger according to claim 1 or 2, wherein the heat radiating portion is arranged so as to overlap the evaporating portion on the lower side.
At least one of the plurality of heat radiating components has a pair of plate-shaped heat radiating plate portions (201d, 201h), and the pair of heat radiating plate portions are laminated in the stacking direction and the heat radiating flow path is provided. The heat exchanger according to any one of claims 1 to 3, which is configured by being joined to each other so as to form between the pair of heat radiating plates.
At least one of the plurality of evaporation components has a pair of plate-shaped evaporation plate portions (221d, 221h), and the pair of evaporation plate portions are laminated in the stacking direction and the evaporation flow path is provided. The heat exchanger according to any one of claims 1 to 4, which is configured by being joined to each other so as to form between the pair of evaporation plates.
At least one of the plurality of heat radiating components has a pair of plate-shaped heat radiating plate portions (201d, 201h), and the pair of heat radiating plate portions are laminated in the stacking direction and the heat radiating flow path is provided. It is configured by being joined to each other so as to form between the pair of heat radiating plates.
At least one of the plurality of evaporation components has a pair of plate-shaped evaporation plate portions (221d, 221h), and the pair of evaporation plate portions are laminated in the stacking direction and the evaporation flow path is provided. It is configured by being joined to each other so as to form between the pair of evaporation plates.
The invention according to any one of claims 1 to 3, wherein one of the pair of heat radiating plate portions and one of the pair of evaporation plate portions constitute one plate member (381, 382). Heat exchanger.
The plate member is the first plate member (381).
The other (201h) of the pair of heat radiating plates and the other (221h) of the pair of evaporation plates constitute one second plate member (382).
The first plate member and the second plate member are joined to each other to form a plate member joint body (39) including one of the plurality of heat dissipation components and one of the plurality of evaporation components. ,
In the plate member joint, a first intermediate through hole (39a) and a second intermediate through hole (39a) arranged between the heat radiation component and the evaporation component included in the plate member joint and penetrating the plate member joint. An intermediate through hole (39b) is formed and
The first intermediate through hole and the second intermediate through hole each extend in the joint width direction (Dw) intersecting the alignment direction (Dh) of the heat dissipation component and the evaporation component.
The heat exchanger according to claim 6, wherein the first intermediate through hole is arranged so as to partially overlap the second intermediate through hole on one side in the alignment direction.
The plate member is the first plate member (381).
The other (201h) of the pair of heat radiating plates and the other (221h) of the pair of evaporation plates constitute one second plate member (382).
The first plate member and the second plate member are joined to each other to form a plate member joint body (39) including one of the plurality of heat dissipation components and one of the plurality of evaporation components. ,
In the plate member joint body, intermediate through holes (39a, 39b) are formed which are arranged between the heat dissipation component portion and the evaporation component portion included in the plate member joint body and penetrate the plate member joint body. ,
The first plate member intermediate holes (381d, 381e), which are portions belonging to the first plate member among the intermediate through holes, are formed in the first plate member.
The first plate member has hole peripheral plate portions (381h, 381i) having a shape bent in the stacking direction from the peripheral edge portions (381j, 381k) of the intermediate hole of the first plate member.
The heat exchanger according to claim 6, wherein the hole peripheral plate portion extends in the joint width direction (Dw) intersecting the alignment direction (Dh) of the heat dissipation component and the evaporation component.
The first plate member has a first hole peripheral plate portion (381h) and a second hole peripheral plate portion (381i) provided at different positions as the hole peripheral plate portion.
The heat exchanger according to claim 8, wherein the first hole peripheral plate portion is arranged so as to partially overlap the second hole peripheral plate portion on one side in the alignment direction.
The plate member is the first plate member (381).
The other (201h) of the pair of heat radiating plates and the other (221h) of the pair of evaporation plates constitute one second plate member (382).
The first plate member and the second plate member are joined to each other to form a plate member joint body (39) including one of the plurality of heat dissipation components and one of the plurality of evaporation components. ,
An intermediate through hole (39a) is formed in the plate member joint body, which is arranged between the heat dissipation component portion and the evaporation component portion included in the plate member joint body and penetrates the plate member joint body.
The first plate member is formed from a first plate member main body (383) including the heat radiation plate portion and the evaporation plate portion constituting the first plate member, and an outer edge portion (383a) of the first plate member main body. It has a first outer edge plate portion (381 m, 381 n) forming a raised shape, and has a raised shape.
The second plate member is formed from a second plate member main body (384) including the heat radiation plate portion and the evaporation plate portion constituting the second plate member, and an outer edge portion (384a) of the second plate member main body. It has a second outer edge plate portion (382 m, 382 n) forming a raised shape, and has a raised shape.
The intermediate through hole extends from the first plate member main body to the first outer edge plate portion in the first plate member, and extends from the second plate member main body to the second outer edge plate portion in the second plate member. The heat exchanger according to claim 6, which extends to.
The heat exchanger according to claim 10, wherein the first outer edge plate portion is configured to be bent from the outer edge portion of the first plate member main body.
The first plate member is provided on one side of the first plate member main body in the joint width direction (Dw) intersecting the arrangement direction (Dh) of the heat dissipation component and the evaporation component. 1 The outer edge plate portion (381 m) and the other side first outer edge plate portion (381n) provided on the other side of the first plate member main body in the width direction of the joint are provided as the first outer edge plate portion. ,
The second plate member includes a second outer edge plate portion (382 m) on one side provided on one side of the second plate member main body in the joint width direction, and the second plate member in the joint width direction. The other side second outer edge plate portion (382n) provided on the other side of the main body is provided as the second outer edge plate portion.
The intermediate through hole extends from the first plate member main body to each of the one side first outer edge plate portion and the other side first outer edge plate portion in the first plate member, and the first plate member in the second plate member. It extends from the main body of the two-plate member to each of the one-sided second outer edge plate portion and the other-side second outer edge plate portion.
Further, the intermediate through hole separates the heat dissipation component from the evaporation component in the first plate member main body and the second plate member main body.
In the plate member joint, the heat dissipation component and the evaporation component are the one side first outer edge plate part, the other side first outer edge plate part, the one side second outer edge plate part, and the other side second outer edge. The heat exchanger according to claim 10 or 11, which is connected to each of the plate portions.
The outlet position heat dissipation component is a heat dissipation component located at one end or the other end in the stacking direction among the plurality of heat dissipation components.
The inlet position evaporation component is any one of claims 1 to 12, which is an evaporation component located at one end of the stacking direction or the other end of the plurality of evaporation components. The heat exchanger described in.